What should I do?

I feel like me and my boyfriend’s communication has been off lately. We’ve had disagreements and we don’t we fully talk about it, it just kinda blows over and the problem doesn’t get solved. We’re not the best at talking about our feelings. My problem is I’m just scared to say how I feel because I’m afraid of looking silly or him not caring. I’m good at not yelling and name calling but I do tend to get emotional and cry, I don’t want to look weak or like a cry baby. I just want to find effective ways to communicate so we can work through our problems. Would it be a good idea to try and have a sit down talk with him tomorrow? If we do sit down and talk, how should I go about expressing myself?