Hello
anume123,
I doubt that it is possible to get 1 bitcoin from doing only bounty campaigns and that is why:
1) A lot of bounty turns to be scam.
2) Part of campaigns, that are not scam hardly collects soft/hard cap.
3) Little number of campaigns do not extend their bounty campaign/ico period
4) Even less projects gets listed, and when they do, token/coin price drops grammatically quick
If 1)-3) points doesnt scare you, this means you need to participate in hundred of campaigns. That would "eat" all of your free time.
Doing bounty hunting as full time job is insane. Even if you still manages to get all the tokens/coins from bounty and sell it, unpredictable cryptocurrency market will punch you to the gut

Earning a 1 btc is so hard to earn last year. But comparing the profit we get by my friends the year 2017 is unbelievable. We just got ** btc and that time was shocking, unexpected to the crypto to be known by many and support the system of the currencies.
It also depends on how you think. If you think that you can reach your goal you can have it. Just think wisely and don't afraid to put some risk. I think the first thing to do is search for an company which based on your place. Communicate with the team and give them a proposal, go to their office and present it. You cant just sit their and get your ass warm, Do the move be a hardworking person and it will payoff.