Jose, as far as I can see, no one is telling you to not do anything, just take the proper steps to ensure your safety, the safety of others and prevent serious property damage. I'm all for one buying equipment, but the skills need to be there to use it, and from all the reports, the US is a very litigious country. If you like climbing, that's one thing, you want to make money at it, well, you need to think business.
Up here it's a no fault system, HO hires you, you mess up, their claim goes through their own insurance for the most part. Contractors of many kinds can 'get away' without having insurance. Well, insurance companies make their own rules, they are tending to not payout unless the HO checks that the contractor, no matter what they do, has proper insurance. The writing was on the wall for me. Continue on skirting the system, or pay to play, and try to add another bonus to the sale if they hire me? But unfortunately it still comes down to skills and experience. Insurance companies might not provide coverage without adequate training or experience.
I can completely understand your situation being all geared up and frustrated. Just be safe. There is great advice from great people here, and that's something you can't buy.