As the other commenter mentioned, only cards I have give grocery cash back / rewards at 5% rate and that doesn’t apply to Amazon purchases (which is 1%). AMEX Cobalt for example is a paid card, C$12/mo, but with grocery and amazon gift card purchases the rewards pay for the monthly fee.
All advice here seems to focus on linux, but I’d say rip that bandaid off first. Go cold turkey on roblox. That shit is the worst cancer to come out of something that was fun initially.
Not in four months to a year. Yesterday. Learn to control your impulses first and the rest will fall into place, whichever way you go.