For any female, the risk of miscarriage in 1:5 One miscarriage alone doesn't increase those risks. Twin pregnancy does carry more risk, but we can't say your odds for sure. It depends really on why you miscarried before, the type of twins, how many weeks you were, family/medical history, etc.
Yes it is always possible to get pregnant with twins especially if you have conceived twins before. Miscarriage is also always possible as well. Sorry but no one can for see if someone is going to miscarriage but many if not most women who have a miscarriage will ho on to have a healthy pregnancy and child. Were your doctors able to give you a reason for your miscarriage?