Hello, so uhh, I haven't been on this site before. However, I and a friend of mine planned to do a speedrun (which had sadly failed) so I decided to come here to get more invested in the speedrunning community as I want to improve my skill in some games and put it to good use. Anything I should do, or I need to know before I start getting involved in the speedrunning community?

Welcome! Interestingly, right below you there is a thread written as guide for beginners. So you can start here: https://www.speedrun.com/introductions/thread/l2f8h Also, the "speedrunning community" is a very general term, it is a collection of many communities for individual games or series.