MDMA and Cocaine use?

On saturday night I took 3 capsules of MDMA and i did about 8 or 9 lines of cocaine. I started taking the M at around 11:30 pm and started doing the coke at 3 am. The thing is, this was my first time doing BOTH. Would you say I did a lot? On sunday (the day after) I had the worst comedown. I was very very depressed and cried all day, I even thought about suicide, today is a bit better although I still feel some effects of the coke (short attention span, nervously shaking, breathing heavily, and the inability to sit still). What are the chances that I will become addicted to these substances? I found the M to be a lot better than the coke although it's hard for me to tell them apart because i did them at the same time...What should i do if i find myself wanting to do more?