DeGoogle Yourself

So my problem is that I don't have money for a new phone and I also need my banking app. Rooting is not possible.

Steps I've taken:
-removed and deleted my Google account
-disabled all default Android apps and all Google apps except for Play Services (needed for location service and the banking app) -denied all permissions for Play Services except location and movement sensors (can't be denied), phone and sms (needed for the banking app)

I figure Google can still track my phone and use its location for traffic analysis, etc. but has no way of targeting me with ads (their main business) or connect my phone to my identity (no access to my contacts, call logs, keyboard, calendar, mail, etc.). I hope it turns me into a nameless device ID.

Does this help at all? Is there anything else I can do?