How Can I Find More Clients?

To find new clients I am using SEO, adwords, local ads website and some facebook groups to post my ads in there. Also I want to start with FB/Instagram paid ads.

You're going to get garbage responses since you gave garbage info. There's no one-size-fits-all.

Except this:

Where do your potential customers hang out?

In a gym? In Facebook groups? On Instagram? Forums? Driving to work everyday?

Figure out what keeps them awake at night in terror.

Write a message solving that problem.

Put it where your customers hang out.

Profit.

You need to make a proper marketing & sales plan and implement it with full speed
Use Google adsense, Facebook ads and advertise your products in different forums and blogs to generate quality leads and provide those leads to quality outbound callers and ask them to make long term customers
Within a short time period you will see a rapid boost in your sales

Try social media for search clients

PPC. u at the right place for this, try juicy ads if u in the cpm audience niche.