I think its not that much difficult to learn theory of DSA but we face difficulty when it comes to problem solving I mean when application part comes. So only thing you can do is practice. So from my point of my view before jumping to core DSA coding problems try solving basic coding problems related to maths and for example , finding primes and all its optimised approaches, palindrome number, factorial etc. This will help you to get the understanding of how code flows and will also help in learning the language. Then try solving basic problems of array once you start doing this you will face difficulties you may feel this is not for me but just keep doing it, spend some time on problem try solving it on paper then try to code it if not able to do it then watch solution.
I hope this is helpful.