Bachelorette worries

Hello,
I was looking for some advice. I have moved home within the last 2 years due to family illnesses and my friendship groups have dwindled a bit since my move. I’ve tried to keep up contacts and plan meet ups. My MoH has been planning my Bachelorette and has asked that I have no involvement in the planning as a surprise. I have three bridesmaids in total. I gave her the name and numbers of people I would of loved to come and out of all of them, which was 15, no one is coming. My sister in law has bailed also. The thing is I’ve made a big effort to travel out to people since I’ve moved home and show up for events. But I’ve not had anyone give me the support back. I also thought it would be nice for a bit of a catch up. I’m a bit shattered.
My mother and mother in law want to have dinner as a small thing with them so they want to be separate. My MoH has asked that I invite some work colleagues that I’ve gotten close with.I’m feeling a bit low and embarrassed. Im a bit of an introvert so was feeling nervous already about it. Do I consider going ahead with it? Or should I have something smaller with my bridesmaids?