Hi @marco7179 and welcome to our adorable Community π We share the same name, how exciting! You are right, some levels are harder than others and might require a little bit of patience. Anyway, I went through that level as same as lot of players did before me so it is achievable for sure. You can always navigate to Videos section and find level you are stuck on. It might give you an idea which character and tactics to use. Here is the video for level 88Β https://community.king.com/en/candy-crush-friends-saga/discussion/177605/levels-81-90#latest
I hope this will help you. Have a wonderful day π€