I think it depends on what your end goals are.
If you wish to be more of a prolific blogger on this platform, that investment of steem could jumpstart you in some good ways, if you're looking for a more profitable path, I would say hold is the best option for now.

I would Strongly discourage you spending it on 90 days worth of steam power delegation, that is unless you feel in 90 days you could make back those funds with voting in such.

BTC 0.022 = 170.87USD
Converted to SP = 4643 sp, your upvote would be worth $0.06 (If you self voted *Not that I encourage this) you would need to vote yourself 2,847 time to break even, at 90 days, you would need to post 31 times a day and upvote your self at 100% for the 90 days to break even on your SP delegation buying.. so I would not buy the delegation...

best bet again would be to hold, or to invest in the SP and keep growing your reputation and power on this platform. That's just my thoughts