I'm feeling nice, so I'll reply instead of being arkward
As you have an AGU, you currently have a ko3 turbo mate, which will not ever make more than 195bhp I'm afraid
You could map it as it is now, totally stock, and see 185-190bhp, or you could add every bolt on mod going, and make 190-195bhp.
To get beyond this figure, you'll need a ko3S turbo from a later facelift car, leon cupra, 180TT, Later Golf, loads of things to get a turbo from.
Add a ko3s, along with a 3'' Downpipe and decat, and a front mount intercooler, and you'll be good for 220-230bhp depending on where you get it mapped.
The downpipe is absolutely essential I'm afraid, as the stock downpipe is SO small it's unreal, a massive restriction. Downpipes and decats that mate to your stock exhaust are only £100 on ebay.
The standard single side mount intercooler is also terrible, hence the need for the FMIC. Search ebay for mk4 golf FMIC and you'll find a turbo revs kit for under £200 which is perfectly suited to the ko3S.
As well as these things, you'll need a decent airfilter, be that a panel filter or a cone, and a working Diverter valve, be that a new stock one, or a forge 007/008.
A custom map then from somewhere like R-tech for an AGU, and you'll be very, very happy indeed.