One dollar? Damn and I thought that I didn't have enough capital to invest. Dude, with one dollar you ain't doing anything - the fees that are charged from exchanges usually take 1-2 dollars, which mean you are likely to be indebted by 100% if you try to "invest" that one dollar. Please try to get some more money and put it then into crypto.. one dollars makes no sense.
One dollar is not even enough to pay the current bitcoin fees, it seems some people have a completely mistaken idea about the state of bitcoin, one dollar may have been enough right at the beginning of cryptocurrencies but now after almost 10 years if you want to make money you need to be ready to invest a good sum of money as well, one dollar is not going to cut it, in my opinion you need at least a few hundred dollars if you want to make some investments.