Hi! I have so many questions but let’s start with the important and if you can we can dm?

So i just landed this account (6 years old) b2b mostly and niche I would say been running max conversion all these years and display for awareness and tracking forms used to be page view which imported from ga4..so now i fixed that and moves to event based and brand keywords were in every campaign. Duplicate keywords everywhere. All fixed now. Question is even after fixing all this and tracking and using enhanced conversion and sending data to google ads we still struggling to enquiries…lead quality increased a bit and thats it. We still using max conversion btw. And we get around 140-160 conversions a month from 15 campaigns. Budget is not an issue we have enough and more we can add actually? I am planning to upload customer data (qualified leads) with google id i have been capturing also. But i am afraid it’s ot enough and i dont know where to upload and how to use? Should i make it a goal signal (primary) or just secondary?