Is it possible to convert from Christianity to Islam?

Ive been a Christian for eight years and I am suddenly interested in Islam. The two religions differ on some very important issues, but I feel like I’ve worked most of them out. The message of Islam is very obvious and must be taken into consideration, but how do you reconcile the two? Is it possible to first be a Christian and then be a Muslim? If so, how do you go from one to the other?