Dear friend,
So far, I know for kind of earning money from bitcoin and altcoins.
I start trading when bitcoin 17000. until now, I lost a haft of money.
ICO I have win any ICO. But I did not invest to much.
Lending I think have not join anyone. But I think in the first time you can get profit from lending. But no more later.
And now, bounty, I still reading and research information about it. No one help or support. One day, hundreds of campaign public. But dont know which one scam or good.
I am distempered. Need more advice from you here

There is no need for this question cause you can combine all these jobs and do all at a time. There isnt much thing you will have to do in lending, all you need to do is find a site with credibility and lend your cryptocurrency to them and thats it, youre done with lending. Then that brings us to the rest which is ICO, trading and bounty. ICO is a bit similar to Lending, cause you will be investing.
So that leaves us with Trading and Bounty which are the stressful ones. Not a lot of people are good at trading, so you if you dont know trading you will have to choose Bounty, and if youre good at trading and you know it will bring your enough income, then go for it.