So you are having trouble remembering mechanics in T5 and want it to be nerfed more so you can do t6-9? You do realize that t6-9 also has lots of mechanics that you'll need to remember? If you get carried through T5 you'll just be going from one road block to another. You'll be back on the forums asking for T6 to be nerfed.

My suggestion is to simply get better. Watch videos until you memorize everything then put together groups until you get a good one.