The main problem I ran into was
- Parts that were marked as compatible that were absolute rubbish. You would there is little difference between one brand of wiper arm and another. Apparently not!
- It takes 2 days to order a part from the internet. The nearest part supplier is a 30-40 mile drive. So if you forget to order a part you are either waiting another 2 days or you have a 2 hour drive.
As a result. I ended up rebuying all the parts about 2 times and I should have gone to a local parts dealer where they give you either Genuine, OEM or quality aftermarket. The thing is that I compared the genuine parts that did work with the ones I bought from ebay and visually there is little difference. So now I only buy Genuine, OEM or quality aftermarket.
It is all part of the learning experience. Even though at the time it was frustrating.
Most modern cars blind oncoming traffic anyway. Either that or 20%+ of morons riding around with high beams and blue/purple LED retrofits.
You may have been defeated by the inspection, but the battle for headlight brightness/alignment was lost years ago.
Or maybe their "alignment" tool was a scam you got robbed of 15 euros?
With any DIY car repair, you always run the risk of things like this, where you don't-know-what-you-don't-know. But it's still worth the ride and the lesson, imo.
When I was first driving I went through how to change a wheel with my dad and also brake blocks, oil changes that kind of thing. Even my dad who has rebuilt engines from scratch normally goes to the mechanic for everything now.
The YT video for changing my cars' front light bulbs was less than two minutes. After half an hour and a lot of scratches / bruises, I thought I got it done. Started the car, checked the light goes on and off. Scrub hands from dust and dirt, be happy.
Mandatory inspection two months later found out that it was pointing so badly off that their targeting device could not even get a reading. In other words, I had been blinding oncoming traffic. Car didn't pass inspection, I was defeated, and took it to the mechanic.
He also spent twenty to thirty minutes on readjusting the bulb, before it was done and up to spec. It costed only 15 euro, though, as they also expected it to be a 30 second operation.
I guess my point is, don't get discouraged when things don't work immediately, or don't work exactly like a manual / video makes you think. Often it's a learning experience, and while those can be fun, they also sometimes are very much not.
(I'm also a complete novice, and not particularly enjoying the experience, just not affluent enough to pay for all of the maintenance work.)