I started learning to reverse engineer programs so that I could hack some of my favourite old videogames - it seems fascinating!

I've already had some background C++ knowledge and programming in general.
Fortunately, I started reverse engineering like 1 week ago and I really like it, but sometimes I can't grasp some information, learning assembly has been a nightmare and I still can't do any crackmes on my own..

It'll be very helpful if you could recommend any easy to understand resources (I am 16 lol)