im 18 and i let my parents know and now they want to kill me. i don't know much about what i will be getting into if i join. i hear alot of people end up regretting they joined cuz of what they have to go through (not just the training) 1)how long is training? 2)what will i be going through and how long? like the stages and stuff including after training. 3)can i take college classes after training or during? 4) is the minimum service 4 years? and within those 4 years can i take college classes regularly?