Signed for Logistics but having the urge for Infantry...

Hey guys so theres been something on my mind recently, I ship in June and have a lot of time to think about my decision, I signed a CJ Contract because at the time I wanted a job that would benefit me well for when I get out. But Ive had a deep urge in me thinking about doing Infantry, the reason why I didn't sign for it in the first place is because and this sounds ignorant but I don't want to die. But it looks really badass and that urge is just getting stronger everyday, I could be doing a deskjob for my USMC career or do badass infantry shit, would I even be able to make the switch if I wanted to? Or am I just being stupid and in a egotistical phase at the moment.