Been reading this board for a while, thought I would drop my short checklist for choosing a casino site. After getting burned once or twice I stopped going by ads alone.
Licence comes first for me: check who regulates the site, because some sites quietly block certain regions. Next come deposits and withdrawals: I want at least one fast e-wallet option, and there should be no weird fees on cashouts.
Bonuses are the tricky part. Read the wagering and the max bet rule, and live tables often do not count at all. A good recent review that covers all of this is worth a read here Trino Casino before you deposit anything.
Most of my sessions are on mobile, so I check how the lobby works on a small screen. Ask support one simple question first: if they answer in a couple of minutes that is a good sign.
Anyway, that is my routine. Set a budget and stick to it.