I Havent had sex in 5 years not talking to anyone do you think is time for me to date

I Havent had sex in 5 years not talking to anyone do you think is time for me to date my last periovus relationship my ex fiance had cheated on me with multiple of girl gave me a std two times we only been together for 7 months we was planning on having a child together he's 26 and I'm 27 after I break up with him in 2016 i lost myself been partial mental facility since then stuffer from bipolar disorder he been trying to contact me on and off for years after our break up and adding me on my social media pages he won't leave me alone!. I just want to date but I don't know I need more time to work on myself I'm ready want a committed relationship to start a family.