I tried all of this, It says that my skse mod is running but I still can't find a skse.log. I am still unsure if the TESVAL mod is working. I have tried running the skse_loader as an administrator and I have it as an exception on my antivirus. Don't know what else to do.
skse.log should be in the same place as skse_loader: steam\steamapps\common\skyrim
I wouldn't worry, though. If SKSE is running and you installed TESVAL correctly, it should work fine even if you can't see it.
You might try running the game without SKSE, checking fps and then checking them again in the same location with SKSE active.