So in total you think is it a good field to spend time and learn?
Approximately after how many month a guy can reach to a level to find a job in this matter?
Honest answer: no fixed month count to vouch — hiring varies by market and proof. The pattern that holds up: a few months of public write-ups, one investigation a week with sources shown, gets beginners taken seriously faster than a year of silent courses. The receipts become the resume.