Stony Brook Univ. CS Student. Should I transfer? What do you think?

First of all, I went to school for an year but in Junior standing. I got GPA 3.72 but I believe I can do better since the last semester I had a really tough time because of problems within my family. I am weighing between continuing my study in grad school and start working in big companies like google, ms, oracle and so on… If I am to graduate current school I am expecting 3.9+ gpa(if I am not overestimating myself…).

My question is… under assumption of graduating Stony Brook with 3.9+ gpa, am I competitive enough for my further goal? Like grad. schools at MIT, Stanford and many other exclusive schools? What if I choose to get a job? Would they higher me even if I had graduated relatively less renowned university compared to Ivy Leagues, MIT, Stanford and so?

Stony Brook is a very respectable school in CS.

Does that mean, in your opinion, thinking about transfer is waist of energy and time?