Getting over these hang-ups is key for your happiness
When a Cancerian is hurt in love, it may take a while for them to heal - a long, long while. After all, your heart is vulnerable in all situations. The hard part may be healing your wounds before you try to move on.
One door needs to be fully closed and walked away from before a new one can open and be walked through. It does no good to launch yourself back into dating right after a breakup.
That'll only put off the repairing you need to do. What lessons did you learn and what did you realize doesn't work for you in a relationship?
Be proud of your sensitive nature. It makes you the wonderful, caring person you are. If you need some time to yourself for a bit, take it with pride. Eventually, you'll find the right person for you!