Relastionships???

So, I've been single 3 1/2 years... I'm 28, i have two beautiful children ages 8 (girl) and 4 (boy), I own my own house in Victoria and I have a good paying job...

My question is, when and how do I even start to find a boyfriend? Ive been on my own for so long now I don't even know how to fit the thought of a boyfriend in my life let alone one who has to take on my kids. My daughter is incredible smart and a well adjusted little lady. My son has adhd and aspergers so he's difficult at the best of times but he has such a big heart... my biggest issue is I have TWO baby daddies!!!

My daughters dad was my high school sweet heart, hes a gem (married now with a baby). My sons father (ex husband) is a jerk to put it lightly (left me for the girl he's with now)...

I don't have a problem bringing men in but keeping them errr, I've never found another man id even want to met my children either. I jusr dont even know where to start and its getting kinda really lonely now, always looking after everyone else never having someone for me.