All perfect praise be to Allah, the Lord of the worlds. I testify that there is none worthy of worship except Allah and that Muhammad, sallallahu ʻalayhi wa sallam, is His slave and Messenger.
May Allah reward you for your keenness on seeking after the lawful and your fear of committing the unlawful.
As for your question, then the answer is that trying to circumvent the conditions set by the state or the concerned authority responsible for issuing licenses for this practice is impermissible as long as these conditions serve the public interest and eliminate the means leading to whatever harms people. The fact that some of those who work in this profession cheat and deceive does not make it lawful to follow their example. The means of lawful earning are abundant for whoever wishes to seek them in other fields if it is difficult to invest in this particular field without resorting to trickery and using herbs that are not permitted by the law or the like and violating the regulations governing these professions.
The scholars stated that the Muslim ruler is entitled to set restrictions on lawful activities, such as buying and selling and hiring and the like, and it is obligatory to obey him inwardly and outwardly, or only outwardly according to the benefit or harm that result from that.
The Shaafiʻi book Tuhfat Al-Muhtaaj reads, “The preponderant view in this regard is that it is not obligatory to obey the ruler except outwardly in what does not serve public interest for fear of a resulting harm or of causing Fitnah (temptation/tribulation). As for the commands that serve the public interest, they must be followed inwardly and outwardly (i.e. in public and in private).”
Allah knows best.