Paint preparation for beginners

hello, I’m about to polish my golf or bring the paint back to the front.I’ve read through many threads here and I’m always on “3m” products.But don’t really see what it has to do with all the different products. Here was the talk of grinding polish This will probably be to remove the upper layer of the paint and will also think of all this small micro scratcher (washing system scratcher), clouds and hologram e remove. then a high-gloss polish, which, as I think, will bring the paint back to the fullest gloss. and still the pink wax as conservation or protection of the “freshly polished paint”. sounds first obvious. now there are for these different polishes also different cloths, attachments (swamms) for machines. at ebay I have now found a polishing machine including 3m products.Poliermaschine question 1: what do you think about it? price,performance, accessories have my car also already sometimes polished with a “15euro polishing machine” from the construction market. but it does not bring such a nice result as it should be professional. now to my paint. unfortunately, I have not managed to take pictures anymore, since the sun has changed. and in the sun you can see very good fine scratchers and these holograms. will I catch up tomorrow. many small very fine scratcher,contaminations. ask 2: would you recommend this polishing set for a beginner? have auc h already read that you can quickly screw up the paint! so question 3: how do you proceed with these pads and the corresponding polishes etc? speeds ? all polishing with machine and with which has and microfibre cloth down polish? a small professional instruction would not be bad. should you advise me not to worry, have a few smaller sheet parts (kotis, doors, hood) still to lie so that I can “do something”. still have a picture of my la ck attached. thank you now already for your hopefully coming answers. and please don’t say “let it be better to bring it to a paintmaker” no that I don’t think the sense of the thing, because with 20 years one is still able to learn