As far as Poker goes (at least for Texas Hold’em), I’d recommend sitting at a low stakes table (1/2 no-limit is the lowest most places have) and merely being observant/make casual conversation at the table for a while until you feel comfortable. If you’ve never played, just tell the dealer and they’ll be happy to help you out (most players will notice if you haven’t played before anyways so you’re not really at a loss there). Just play “tight” (a small range of strong starting hands) and that’s a pretty good place to start!
Thredup: If you’d rather not be hassled by selling your sold clothing items, Thredup could be a good solution. Think of it as a consignment store online. Sellers send in a bag full of clothing, shoes, jewelry or accessories they want to sell. Thredup will then decide which items to sell and which to donate. Since Thredup takes care of fulfillment, the seller keeps less profit.
These aren’t the only ways teens can make money online. If you explore other options, proceed with caution. Read user reviews before signing up for any website to avoid getting caught up in scams. At best, those are a waste of time. At worst, they can cost you money and put you at risk for identity theft. If you aren’t sure a site is legitimate, stick to the basic rule of thumb: If it sounds too good to be true — like the employer that doesn’t ask to see a resume but offers to hire you on the spot — it probably is.