Sorry if my english is bad, It is not my language. Sometimes I might mean things other than I wrote
Edit 1: I mean this as a job till I am older and have a full time job, if I have a fulltime job, I will keep this as a side job (if it is still possible)
Well we do not know what will happen after 10 years. Is bitcoin still exist on that time ? If yes, what may be the bitcoin price? Lower? Triple or double high?
Keeping it as side job or as additional income is good find some good campaign that you can dedicate some of your time for example weekly with up to max 30 post per week. its less then 5 post per day this you can do easily and with not much pressure. But doing this as full time job is very hard, maybe it was possible when it was few years back when most of the campaign were on pay per post with up for some if i recall 400 post a month. This could then be full time job but now its much harder takes lot more time and lot more effort to accomplish this.