Is this sustainable?

Hey guys! Relatively new sitter here, first post in the server.

TLDR: Is the volume of clients I'm seeing now (June) going to be the same volume I get after summer?

I've been sitting as a side hustle for a couple of months now. It started off that I expected it to be just that, a bit of extra income to put towards rent and bills while I'm in between jobs. However, I've seen a serious influx of requests and bookings this month to the point that I don't really have to do my other gigs if I don't feel like it.

I love animals and would really enjoy doing this long term. However, I gotta ask/worry about sustainability. So long-time sitters, is this a main source of income for you guys? I'm thinking that due to people going on vacations and what not, I'm not going to see as much activity come August/September.