Trust me, time heals everything. Of course, you won't be the same, but at least, you won't feel that way anymore.
I believe that you need to just devote some time to yourself and stop thinking about your ex. You can even find someone on fetish sites to help you forget about your breakup and make you feel like an ordinary person again. So consider this way of raising your serotonin, and I'm sure you won't regret it.
