I always look for the magic numbers.
1 - Do you have over 1,000 users - This is interesting, you have some friends who use it.
2 - Do you have over 10,000 users - This is more interesting, its something that has some interest.
3 - Do you have over 100,000 users - This is the critical one, it means you have something interesting and people have told other people about it, now it might get noticed.
4 - DAU - Daily Active Users - This is what its all about, how can you continue growth AND keep people coming back. You need some secret sauce for this.
If you don't have 1,000 users yet, its still a hobby, keep working part time. If you have 10,000 users, then put more time into and continue it yourself, if you ask for help now then you will have to give up too much, if you can continue to 100,000 users then you will be in a better position.
Once you have 100,000 users with a good return rate (DUA) then life changes, there are a few ways to get additional money for operations and Marketing.
100,000 users will allow you to put Google Ads on the site, you will make a few dollars from this, think about how you want to monetize the site, are yo going to charge for membership or put Ads? You must have thought about this before.
No one will have the same view of the product that you do, the more you control the better off you will be.
Thats my 2 cents.