Like many others I worked full time, did all the study by myself at home in between work from PPL(A) right through to CPL(H), IREX & now ATPL(H). A long, hard & extremely rewarding process, & EXTREMELY expensive to get to an employable experience level.
THE MOST IMPORTANT PART OF YOUR POST which will determine how difficult you will find it is - "I live alone with no family to support etc and always have a decent amount of disposable income each month".
If you want to fly commercially you will find it easier if you keep it that way until you are comfortably employed. Dependants tend to compete for training dollars no no other resource I know, & they'll always win. Good luck.