Studies show that singles of 50 and over tend to be pretty pessimistic in their expectations to a partner and relationship overall. The baggage each of the partners is carrying is too much and it prevents from building new and healthy affairs with freshly met acquaintances.
The best policy is staying positive.
There is no such person who has never gone through a break-up as well as struggled with not being compatible with their partner. But when you are younger, you don’t seem to treat it as a reason for failing every time from now on. As you get older though romantic setbacks become an unbearable weight.
Don’t bring negative expectations into your affairs-to-build. Wait for the better and do everything needed from your side to make an experience pleasant from both sides. Also don’t talk too much about your past relationships when you start dating somebody. Your dates are intended for building something new and become closer rather than dwell in past experiences and bad memories.