Okay so I´m trying to run The Legend Of Zelda Ocarina of time 3D ... Like i know some glitches like Getting out of kokiri forest early ... i can complete the dodongos cavern without the slingshot .. so i know the glitches to do the childhood dungeons in like one or two hours ... but i dont know any Adult glitches and i wanted to ask for some tips or something to help me?

What Racingmonster said.

Also, you can still start speedrunning :). Learning the glitches as you go will giving you room to improve your time!

You can run games without glitches.

There is this game I run. And there are only 3 glitches that saves time and all 3 save a major amount of time and 2 of them are easy to do, the last needs practice.

Only 3 glitches..... so far

Oh wait, there is a 4th one that saves about a minute or two.

First thing is to do runs of a game you're interested in speedrunning without worrying so much on glitches. Over time, you learn things of the game that helps you understand how the glitches work...or sometimes you find out that glitches are just not for you. There are those who love watching glitch runs, but there are also those who really enjoy glitchless. Runs that really focus on beating the game quick without abusing much of the programming. Just keep trying glitchless and eventually you'll get it.