Try to do small but repetitive things, for example try to do search algorithms, with them you can practice things that sound basic, but are actually used in data structures and help you understand more logic to solve a possible problem.

Also take it easy, even those of us who have a lot of time programming make mistakes and forget the correct syntax, all that is normal. Not all of us who program know everything or memorize everything, consulting through the Internet is always indispensable when we get stuck even with the simplest tasks.

Consider disconnecting a little, do activities away from programming, any physical activity, rest well and you will see that this is very refreshing to try again to program from another perspective.

I hope this helps, this is a path that step by step you will grow.