It takes a while to get back into it - was the same for me as I came back in April 2024 :-D Especially with all the new abilities it takes long. You could do ghost-card-challenges to understand them - or analyze your battles, especially the lost ones, and see how the abilities work and how new card combinations lead to better strategies. And scroll through the #splinterlands blog - there are many, many battle analysis to read through (I post them regularly for example).
Good luck and don't fall into despair - it just takes time... 😅