First of all, that's really impressing Wish you more success.
To scale up from 20K per month to 100K level really isn't as hard as scaling from your first $100 to the level you are at right now. It's just a matter of doing little tweaks with greater impact. Unfortunately, you didn't specify any context or kind of business you are running. But taking into account the type of community Funnelish is. Hopefully, you run an online business (such as drop shipping, physical products, coaching/info products...etc). If that's the case here are my 3 top things to consider to scale up to your next milestone $100K:
Step 1 - High Ticket Products/Services
As your business grows you'll start seeing the limit of your market, and soon or later each of your products/services will reach its saturation period, thus selling more higher ticket products will be the ultimate choice, of course, that doesn't mean selling them all through your funnels. Having high ticket products at the backend is really the key to 100K+ per month.
It's a simple maths, It takes selling 100,000 x $1 sales to make $1 million. But it takes 1000 x $1000 sales to make the same amount.
This image below illustrates how that works:
Step 2 - Phone Follow-up
While making 20K+ I'd suggest hiring some support staff, that follow-up with your leads and potential customers and try to sell them higher ticket products and services (things we discussed in Step 1 above). Just please don't just hire any support guy/gal randomly. Instead find phone sales professionals who have done it before, who have experience and good track record, put them on some pure commission (making it win-win for both of you, and they'll make sure to work harder), each phone sales professional you hire should be able to easily make you 30K per month.
Step 3 - Squeeze The Last $ Of Each Buyer
As mentioned previously on Step 1, It's not about making "more sales" that's not how you become a millionaire instead making "more per sale" that's what matters most. And that's what Clickfunnels does best, Once a buyer buys a specific product, offer them something more immediately as an upsell. If they refuse it offer something way better as a down sell, your options are endless, you can absolutely take it as far as you wish.
In this step, you should be really paying higher attention to your Cart Value, the higher the cart value the better.
Once you have higher enough cart value, you can then diverge your attention towards bringing in more leads, at this time you'll be able to afford better quality leads, since you'll be able to pay more per leads.