I joined match, eharmony and zoosk all at the same time. I'm not employed, I'm retired.
I met two people, one was an older man and was pretty nice but had a lot of health problems that I was not prepared to deal with. The other one I liked a lot but the friendship has ended after 4 months.
What I didn't like about eharmony is that I was not able to choose the ages of the men I wanted to be matched with. Also there were other parameters that weren't observed as far as who I hoped to be matched with.
zoosk actually had nicer men on it and I did talk to several there. again, some of the men with health problems that were severe. (stroke, cancer, seizures)

I read that it is a numbers game, you have to contact lots of people to get responses. I found myself overwhelmed and very anxious so I stopped going to the sites.
But plenty of people have had success with it, so if you are ok with it, keep on trying.