Not much prepared. Should I try?

3 years at Amazon (8-9 overall). L6 SDE that was promoted earlier this year. Happy with manager. Don’t want to WHOffice 3 days. 270 TC.

I started to prepare to interviews, but at first it was for fun. Now I have interview for Principal SDE in MS in 2-3 weeks. Facebook just pinged me.

Should I try at Facebook with so short notice given I’m not feel fully prepared? Im still not 100% sure that I want to leave. Should I also ping Google (that was pinging me earlier this year) to get full set?