Just broken up with my fiancé (needed to happen) I have a 3 year old and am pregnant with the second.

Pretty scared but was wondering if single parents can tell me what it’s like to be on your own with two children, luckily one of them will be in reception, I’m scared in case I won’t find anyone else as I will have two children, and have been so controlled throughout my relationship I’ve been made to feel I can’t do this alone.. please any advise would help so much! Thank you x