The grass is always greener on the other side. Everyone has constraints, so can we all stop feeling sorry for ourselves?

If you know how to identify the constraints, then you should better know which trading system is a good fit. (Or perhaps you'd be better off designing your own system to suit.)

Here are the constraints for USA residents:
* Can trade with portfolio margin (~6x leverage) with stocks and ETF's if your account size is greater than $100k and regulation T margin (2x leverage) for lesser accounts, and cash only for micro accounts.
* Cannot day trade stocks and ETFs with an account smaller than $25k.
* Can day trade futures and forex with any account size.
* Forex leverage is super low and has weird FIFO laws. (Consider forex futures instead.)
* Futures leverage is high for day trading only and medium for long term positions. (Contract specifications vary. Margin requirements vary per broker.)
* Margin requirements for futures traders favor traders with large accounts.
* CFD's are illegal.
* Options trading of futures, equities, and ETFs is legal.

And of course, read the manual's description of the Z systems.