Many people tell themselves – and enjoy telling others – “I’m too hard on myself, you know, I beat myself up…”
That’s almost always a false evaluation. Most likely what is actually happening is just that person inappropriately engaging in emotional self-indulgence.
Actually being too hard on yourself would mean that you are disciplining yourself too strictly, which is not all that common. I’d wager that not a single person who complains ”I’m too hard on myself” is actually disciplining themselves too strictly.
Remember that self-discipline is a means, not a punishment, so use it to live well.