Actions

Remember the lessons you've learned from the past, but don't let your past experiences affect what you choose in the present. 

You can't change the past, so instead, look to the present and future.

You may feel overwhelmed and obsess over the big things you can't influence. Instead, try to act on whatever aspect you can control, regardless how small.

Try a number of things and see what works. Small actions can generate feedback and allow you to discover more ...

Your habits are not the only actions that influence your identity, but by virtue of their frequency, they are usually the most important ones.

So the most practical way to change who you are is to change what you do.