SA Panic Time Yet?

Almost January and don't have an IB offer. Junior D1 athlete from a non-target (think Wake, Villanova, Vandy) with a 3.6 GPA(Finance Major). Applied to a lot but haven't had more than a couple interviews. I was pretty late to the recruiting/networking season and I'm really worried right now.
Couple Questions:
Should I keep trying to network with people at BB firms even though recruitment for this summer is basically over for a lot of them?
I know its really tough to get in to a BB FT without being a SA but is it possible or should I start putting all the eggs in the boutique basket?
Got an offer from a brokerage firm(they're real chill and said they need an answer by March/April), but I'm not really interested. At what point in this upcoming spring should I definitely take it in order to get something in the industry on my resume?
Any advice would be great