Depends on your use-cases.

If it's just to play around with small amounts in the zapping ecosystem infrequently then custodial/trustodial mobile node wallets are a relatively safe and easy way to get your feet wet.

If you want to establish a revenue stream of any kind, or service your friends/family/various apps, and learn, then you'll want to take ownership and run a proper always-online setup (not a mobile node)

I second @DarthCoin's guides for diving in to your options