any tips for a begginer in stocks? are there thinngs i need to worry about or watch out for? good investments back ones etc… oh, and im only 18 lolKit

I have $7000 and would like to make a $14000 purchase in June. Any investment tip on how I can double my $7000.Kassie

I am 17, and I want to open a Custodial Account for stock investment. Can my own bank account be used for this, or does it have to be my parent’s bank account , and then when I turn 18 they give me the earnings. How does it all work?Mercedez