to make money, what you need to do is get eff7 pick, full diamond armor, with shoes of flight or whatever they're called, some flame resisting stuff and other things. This will help you become a miner, and miner's make a lot of money. You could also do farming with a melon sword, and silk touch
A eff 5 is just like a eff 7 in the nether so don't bother risking that kind of tool unless you have /fly pyro+ and them falling boots to help you from taking damage/dying from fall damage
also, mine quartz with silk. then take the quartz ores to mining world to fortune em. that way u get xp from the ores.
I see some bad advice and some good advice, what I would do is try sging, because if ur good at sg you could make a lot, also try mining like said, use the mining world and get the xp then make a better pick perhaps with forutune, try regular diamond armour to start, then just progress farther, even if u have to rent someones pick, but make sre u get ur pic or the rented pic ereped regulaaarly \ xD is is good typers
If you have absolutely 0 money i suggest starting out some local public farm and selling nstars from voting, then buy mining gear 2 mine