Well the gear stick is not going into 1 3 and reverse gears... so would that mean i need gear fluid and if so where is the bottle located?Erm? Do you mean gear box oil or brake fluid that drives the clutch slave cylinder? That is where I would start.
Blimey i know very little about this sort of jobWell there could be many things and not much wrong here.
It’s worth checking there is oil in the box and it is not contaminated with water.
You need to bleed the slave cylinder. Topping up is not enough.
You need to adjust your gear sellector cables. Reasonably easy.
You need a new gear sellector (or to refurbish it). Needs some mechanical skills.
You need a new box. Tough job.
What are you comfortable with?