Is 1$ investment in crypto every day enough? I'm making up to 10$ per day and I don't want something that will tie me down financially since I have other things I'm using the money for aka responsibilities so all I can afford is 1$ per day, also is BTC the best option with this 1$ per day?
It is a good idea to put $1 into bitcoin investments every day, if you can manage it to afford that every day, your $1 investment will grow over time to thousands of dollars. The $1 each day will make sense, but it will be better if you can save it every day and wait for 30days before buying bitcoin. If any exchange would let you use that $1 to buy bitcoin, it will even stressful by doing that every day.
You can try to invest in all altcoins with your 1$

, you can hope that 1$ in every altcoin can gain for 10-100x in the next bull run. Bitcoin is not a bad option if you want to do that but if you want to take a risk then you can try altcoins. As long as you use the money that you can afford to lose then altcoins or Bitcoin is not a problem.
How sure are you that any altcoin will do 10-100x and who tell you that Bitcoin will not do 10x?nobody can tell will actually happen doing the bull run. Infact many of this altcoins price are determined by Bitcoin price, so to be a saver side I will say Bitcoin is the best option to invest in, in order to limit the risk of it investment.