Google search campaign starting out

I'm running a Google ad campaign, it's one that I ran for years before Google changed it's algorithm and then eventually blocked my account. When I first ran the campaign it was very easy to get started I just did "Pest control" and set up a conversion action for phone calls. Google got this done and got me tons of calls within the first few hours and my conversion action knew what it was doing. However, after the Google changes and suspension of my original account I'm trying to get this campaign up and running again with Google ads. Except, I think the issue that I'm having now is that Google doesn't know what a conversion action is and because the broad match / search intent is now king, it doesn't actually know what kind of traffic to send me. Thus, I get tons of clicks for "pest control" because there is like 10,000 a day, but the ones I get are low cost and low intent clicks and I don't get any conversions.

I've tried doing this on exact match keywords, [call pest control], as an example, but all those keywords inevitably lead back to the search term "pest control". Which I think would be totally fine if Google had just a few conversions and knew what a conversion for me and my account was. But unfortunately, I haven't been able to get it there and it just keeps overspending my budget.

I've tried doing portfolio bidding with a minimum bid amount that is rather high, thus I am in more competitive auctions instead of what likely would be junk traffic. I've also tried doing a high CPA and it just doesn't do anything or totally over spends everything. Nothing has really worked for this. I think the solution would be to get Google as many conversion actions as possible, but this is seeming to be impossible at this time. Not sure what other approaches to take? How can I just really push Google to get those first few conversions?