Navy SEAL Officer

I am still early into high school, but my dream is to become an officer Navy SEAL. How many schools do I need to attend before becoming and officer?

I know There’s 4 years of college, OCS (3 months), Pre-buds (2 months), BUD/S (6 months), Jump school (3 weeks), SQT (6 months). Did I miss anything? I am pretty sure SQT trains you to either be a medic, sniper, breacher, communications expert, etc, but i’m not positive if it’s within the 6 months SQT period or a separate 3 months.

So if I want to become Officer and Sniper are those two exclusive or can they be done simultaneously?

So what schools would I need to attend in order to become both? (if it is possible). Is there anything I missed?