Mods Help

So I recently decided to play with the Wynn expansion mod cause I want to constantly see how much Exp I am at...
At the same time, I want to keep my optifine mod on, but I cannot find a way to run both at the same time. What I did was add the file (or whatever) (the name is Optifine 1.12_HD_U_C7) installed by optifine installer, to the Forge file (1.12 forge), is there anything else I have to do besides this to get it working cause it is not working right now...
Yes I did follow Hippie's video and I still messed up...

P.S sorry if this is a bad section for this... I need to navigate myself around the forums better

 

uh... just don't use mods it was meant to be played in vanilla

also if you use mods the wynncraft team can't help you because of above

 

Okay, you just need to add the Optifine_1.12_HD_U_C7 (If its an installer) add both it and the expansion mod to your mods folder, then launch MC with the forge you’re using. It’s that simple. :)