Returns are based of the "nature" of the strategies you use.
It is best to be diversified among strategies.
For example, delta neutral, short premium, strategies, will give lower returns (in the 20%- 40% range), but they will do that more often, with less risk.
Directional/gamma trades will give you $200%+++ returns,sometimes in 1-2 days, much less of the time, but if you are very careful with your stop losses, there will not be much more, if any risk.
Given the nature of these 2 approaches, it would be prudent to allocate MUCH less capital to the latter, and much more to the former. It will all add up in the end, if you have a plan, and know what you are doing.,
Day trading has gotten a bad rap but, if you have a clear plan, and are religious about preservation of capital, it is not uncommon for example, to buy an option for $2.00, and sell it the same, or next, day for $4.00 (100% return in 1 day).
But that is the nature of "that" approach and much less capital should be allocated to it.
Most important of all, you will have periods where you make way more money than you ever expected. This is the most dangerous time , because it gives a false sense of power to the trader, and could lead him to start changing either his rules, or his size of allocation.
"why sit for 4 weeks, to make ,30 cents when I can make 100% in 1 day?"
Do NOT go down that road!