Assalamalakum, I am 34 years old. I have received many proposals over the years, but all have turned away without giving any proper reason. I have rejected only two myself and have even begged for Allah’s forgiveness in case I have hurt those I said no to. 
I have even gotten myself checked for black magic many times and have also gotten treatment . My question is that how can I tell if Allah wants marriage for me or not? Should I stop praying for it? Would this be a punishment or a test? I fear that I sometimes lose hope and start crying as well. Please guide me and give me a synthetic wazifa for my problem. There are many wazifas on the internet but I want a authentic one please