It's hardly rocket science - it's a Golf2!
Do you WANT to learn about it, or do you just want a car to drive and look good in?
You've paid over the odds for what you've bought, because you've bought on colour and the interior, you didn't buy on sound or uprated mechanicals, so you were likely to have issues with a 20 year old car. It's only what, six years younger than you for heaven's sake.
Once you've fixed things on the car they're unlikely to go wrong again in a hurry, so pucker up and build a better Golf, punk.