I'm new to speed running, first game I ever decided to give a try at speed running, I know the proper route for "OOB" but I can't skew...I have tried it many hundreds of times but keep failing....

Skew? What do you mean by that? I know LM speedruns but don't know much about the language of that particular one ^^

I qwould recpmmend starting out with No OOB. I don't kknow anything about the OOB category so I can't help you there but I'm pretty sure most people would alspo suggest you start with No OOB because it is easier and (in my opinion) more beginner friendly.

Take it from someone who has ran the category: it's not beginner friendly. (Like DiamondcrafterA said) There IS a tutorial if you wish to learn how to do it: https://www.speedrun.com/lm/guide/bu8md

I would advise against this until you at least have run No OoB (or any other main category, 100%, Normal Mansion, etc.) for a bit, or are pretty comfortable with the speedgame. It's such a short category, and can be an easy culprit for resets.