I am new to options so should not give you advice. Here are some observations.
It is unusual for someone new to options to start a first trade going long, especially long puts. You must have a reason to start with that position. Unless I understand your reasoning, it is difficult to give you an opinion.
If you calculate the probability and expectancy, your chance of making a profit at expiry is quite low, so you must have something else in mind, or knowledge I do not have to put on such a position?
Anyway, a directional bet like that means you have an opinion on the magnitude, direction and timing of FB that is counter to the opinion of your counter party, who is willing to take the trade because he/she believed you were wrong. If your counter party is a MM, he/she hedged and make money off the hedge and bid/ask.
My non professional mom and pop retail opinion: Don't hold til expiry, exit if you meet your target, whatever that is.
Good luck.