Okay so, main issue I have is that I don't have a PC (so I'd be doing this on ps5) and I don't know how to time it on ps. Other issue, I that's definitely way easier to deal with, there's no guides for speed running so I'd have to take time out of actual practice getting the current best path for the game, glitches and all of that from just watching other runs and finding other optimisations.

The last one's kinda a skill issue on my part, but does anyone have any solutions?

you don't have to provide a timer yourself, mods will retime your run when you submit it. you won't be able to have a load-removed time on console but other than that you're fine to not have a timer

there is a guide for any% here: https://docs.google.com/document/d/1DsDvf28FfRnBlstP0j-UDSE8ZZ7pexfPt_9cR43Fcus/edit?usp=drivesdk (this is also linked in the esources channel in the discord server). you won't be able to do the v1.0.3-specific glitches since you're on console but otherwise this + watching other runs on the board to how strats are done is a good way to get started

Thanks