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Being hard on yourself will not make you tougher (kindness will)

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Equipo Victoris
Redacción de Victoris · 16 Sep 2026 · 5 min
Tired, thoughtful runner leaning against a park wall after a workout

A study of British athletes links self-compassion with greater mental toughness, even in the eyes of their coaches. Why talking kindly to yourself after a bad session keeps you going, and how to do it without drifting into "maybe tomorrow".

You finish a dreadful session, or a race where everything went wrong, and your inner voice switches to drill-sergeant mode: "you are useless", "you are not cut out for this", "you will never get anywhere like this". Plenty of people believe that harshness is what builds character. Well, recent research points to exactly the opposite: treating yourself with kindness may be what makes you mentally stronger.

What the study says

Published in Psychology of Sport and Exercise, the work combined two approaches: a snapshot of British university athletes from a range of sports and a three-wave follow-up of semi-professional footballers. In both cases, those who were more self-compassionate showed greater mental toughness. And not just by their own account, which is always a little suspect, but also as rated by their coaches.

The interesting twist comes with fear: athletes who saw self-compassion as a sign of weakness, the ones who worry about "going soft" if they are kind to themselves, lost that benefit. In other words, it is not enough to be able to treat yourself well; you also have to give yourself permission to do so.

What self-compassion is (and is not)

Self-compassion is not feeling sorry for yourself, nor staying on the sofa because "I do not fancy it today", nor telling yourself everything went brilliantly when it did not. It is treating yourself as you would treat a good friend who has just had a bad day: acknowledging that it hurt, remembering it happens to everyone and helping them think about what to do next.

Think about it: you would never tell a clubmate who dropped out at kilometre 15 "you are a failure". You would say "rough day, what happened? What do you need?". The idea is as simple, and as hard, as giving yourself that same treatment.

You do not need to shout at yourself to push yourself. You can be ambitious and kind at the same time.

The Victoris team

Why it works

Fierce self-criticism has a rather demotivating side effect: it turns every mistake into a threat. And when something feels threatening, the easiest thing is to avoid it. That is how one bad session becomes three weeks without lacing up your trainers. If, instead, you can look at the mistake without feeling attacked, you can learn from it and try again. That, in essence, is mental toughness: staying on your feet after the blow.

It has a lot to do with something we discussed before: knowing exercise is good for you does not make you consistent. What makes you consistent is being able to come back after the bad days, and to come back you need not to have beaten yourself up too much along the way.

How to talk to yourself after a bad day

  • Name what happened without frills or drama: "today I did not hit the pace I wanted".
  • Admit that it is annoying. Pretending you do not care is not self-compassion either.
  • Remember it is human: every athlete, from first to last, has days like this.
  • Ask yourself what a good friend or a good coach would say, and say it to yourself.
  • Look for a concrete, useful cause: sleep, food, heat, stress, an overambitious plan.
  • Decide the next small step: rest tomorrow, adjust the pace, go again on Thursday.

Without sliding into self-indulgence

There is a line between treating yourself well and making excuses, and it helps to be clear about it. Self-compassion looks ahead: it asks what you need to keep going. Self-indulgence looks at the sofa: it asks how to avoid discomfort. A simple clue: if your inner dialogue ends in a plan, you are on track; if it ends in "maybe some other time", it is worth a second look.

Self-compassion versus excuses

  • "I am shattered today, I will rest and do the easy session tomorrow" is self-compassion.
  • "I am shattered, so I will not go out again this week" is usually an excuse.
  • "The race went badly; I will look at what went wrong and adjust the plan" is self-compassion.
  • "The race went badly; this is not for me" is your inner sergeant dressed up as a realist.

If you struggle to stick with dated goals because you punish yourself every time you fall short, try the Victoris Infinite Challenge: it has no deadline and adds up every kilometre you move, on good days and so-so days alike. Exactly the kind of goal that sits well with treating yourself kindly.

Source: Psychology of Sport and Exercise

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