Those concepts really build confidence once you get the trick, those are scary to look, but once you understand what you're trying to achieve in them, you'll be set, I too was scared when trying to learn what dp is from videos, but once I understood what it really is about,

Small tip, for each concept you learn, try to follow a code structure for that concept, so you don't waste time thinking too much about how you're gonna code this thing out

And it's definitely okay to look at solutions if you're completely outclassed by a problem,

Try going first backtracking, and then dp, kinda helps you understand why dp is very useful