If you were able to invest in Bitcoin around the early months of 2017, then I guess you bought Bitcoin around the $1k+ zone. If I am correct, then you are lucky because, with the 2020 all-time high of Bitcoin, you might have really made a huge profit.
(4) before I don't have any source of income. but now, Bitcoin is my source of income.
Although I don't know if you are being real or not, if truly you have archived all that you mentioned with Bitcoin investment, then you should have also invested your profit on other assets or even businesses, which will allow you to not only have Bitcoin as your source of income. Having Bitcoin as your only source of income is not very good advice that has been given to anyone.