I totally agree with @budparr - you get out of it what you put in. Organizing can be a lot of work…finding venues, sponsors and speakers, to start with. Sending out regular emails, all of that. But, it also allows you to really support your local area, which, in turn, can be really good for your career. It looks great to future employers when you have a meetup on your resume that you actively participated in and grew.
Firstly - do less, but do it consistently, and this is kind of echoing what bud said too…You don’t need to have something organized every week or even every few weeks. Once a month or every six weeks is a great rhythm, but you have to be consistent so that people actually make time to come to the meetup.
Secondly - someone asked me recently if it is better to have a small venue that might “sell out” or a big venue. I think that starting small and then growing is absolutely the way to go. “Selling out” i.e not having enough capacity to seat everyone at a meetup is a great problem to have. That way, when you advertise on social, you can create a sense of urgency in people.
When the time is right, you can move to a bigger venue. But in my opinion it always feels a lot better to be in a packed space than in a big space that is half empty. What do you think?