this can only be answered for yourself. the military is a lifestyle... and infantry (and combat jobs) is a tougher lifestyle. you can apply for special forces schools such as the rangers and make a career out of it.. or you might 1 term in the army and decide you want to head back into the civilian world again. im enlisted in the US Navy with a special warfare contract cause im really motivated for a great challenge and tough lifestyle. but like i said, only you can answer it and its all about what you make of it
best of luck bro