Assuming I can gather 500$ a week from here and there,how much exactly should I invest.
I'm not that greedy and there is no time constraint.
Since you said that you are not greedy then probably you can invest $250 because it is a big money in our country. And make sure that you still have some money in your pocket for emergency case. Investing is kinda risky too but learning about bitcoins will help you a lot not get scammed by others.
its all about how much you can take risking your money, you can go all in and buy those coins which have a big development in the future, I think we do have our own position about how much we can take and how deep we can go in terms of trading investment. if you are a risk taker and you can take
the possibility of losing then you can go all in mate.
Always the question about trading is how much money could you risk to gain or lose. I'm including lose because it is already part of trading. I advice to those who are new to trading to just put a small portion or small percentage in trading because it is not easy to recover to lose a big percentage of your money that is a fruit of your hard work.