Have a look at "Skyrim S.T.E.P." (Depending on the Specs of your rig, take all of Core, but make sure you follow install instructions, mod-sorting, cleaningetc TO THE LETTER) and have a look at "Skyrim G.E.M.S." also, read up on ENB for fx-injection. It's all very daunting, but this somewhat dated game can get awe-inspiringly good graphics. I just recently set it up on my PC from 2011 again, and it took be several days and reinstalls to find the right balance between looks and performance.