Been in the hobb 1.5 years. I still have my first tree an American Larch prebonsai i bought from a local Bonsai nursery. I have repotted this past spring into a pond basket. It is growing well my plan is to airlayer off top once I get the girth I want. I have acquired quite a few other trees since then (most raw stock I am growing out). No deaths yet (maybe I am not trying hard enough

)
Following this forum a big mistake beginners seem to make is just getting one tree and wanting to do too much to it. They want to trim, wire, and repot as soon as they get their tree. Many seem to do drastic work on sick/weak trees. These are usually dead once they seek advice here.