The only way you can earn 0.1 btc per week has two options.
1. You will have a freelance job and receive your payment in bitcoin.
2. You will be a good trader and make profit from altcoin trading.
The rest is hard.
I have no doubt that trading altcoin or bitcoin will give you a big advantage if you have great capital and great skills. Because I often invest in my friends. He's good at trading and I get a lot of advantages from him by giving him a little capital
Yes trading can give you a lot of profit you have only to have a good skills that is applicable in trading .
You invest in your friend ,therfore heis the one who used to trade your money .Why don't you try in ypur own to gain some knowledge or on this fprum you can start here reading advices and what coin is good to buy for you to learn and take the whole profit with you.