Being good to yourself does not mean coddling. In that sense, rather than coddle, be a little hard-hearted with yourself. Do not stand for nonsense. Do not accept excuses.
At the same time, learn to move on without regret. Do not berate yourself for something you said or did that you would say or differently now. Do not spend your time mentally trying to undo every word or action or inaction. Do not spend your time mentally wishing you had said something or done something that you hadn't thought of at the time. Responsibility is not the same as blame. Be responsible, but do not play the blame game with yourself.
Decide to be more aware. Yes, make a decision to be aware of every opportunity you have to create peace in the world and in your heart. Start with your heart. Calm your heart. Give solace to your heart. Do not baby yourself, yet do not steep yourself in regret.
Life is not like a bar-exam take over again and again. It is not that you sweep regrets under the rug. Take note, and then be done with regrets. Noted, and put away. Do not leave a list of regrets on your desk. Have a wastebasket where you toss regrets. Free your heart from them. Each regret is like a lead balloon and will weigh you down. Since when did I want you to burden yourself with yesterday?
Today you already do see further. Today you are already wiser. Do not be sadder. Please do not remonstrate with yourself so much. Tell yourself once, and then step away. You have already passed the door frame of the past. Do not keep going back and forth through it. Once is enough.
You are for better things than regrets. Regrets are a dime a dozen. Replace one action with another. You will be given an opportunity to make your heart happy. Why not be happy? So, you spilled the milk or you spilled the beans. Sweep them away quickly, and you will have a clean floor. Do not pick out the beans one by one. Toss them all out. There is no reason to keep fiddling with them.
If you poured too much salt on someone's food, don't dissect it. Do differently next time. You must get on with life and not hold yourself back. Do not be in a rut of remorse. Get out of where you have been. Now, consciously, be forward-moving.
In order to move forward, it is necessary to stop looking back. Otherwise, you go down a one-way street the wrong way.
You have already learned from the past. Now you can put the past away. Put away your accumulation of thoughts from the past. The accumulation serves you now not at all. The past has become an encumbrance and blocks you. Why stay where you are not needed? Why stay where you are not benefited?
Be where you are now without regret. You have had enough of regret to last a lifetime. You have had enough of being sorry.
If you need to apologize to someone, then apologize, and don't look back any more. However the threads of your life have been woven, you are doing new weaving now. What you wove yesterday is already on the floor. Now you attend to where the stitches are now.
You are weaving a pattern in life. Now it is a new pattern. Give yourself credit for that.