The majority of us would be in agreement that there is no single Holy Grail system for all market conditions.
One can create or adapt ones beliefs and behavior to have a system or systems for a part of the several different market types. Having a means of identifying which market type you are in, and trade the system for it, that fits both you and it.
Edges come in many areas. For those that believe you don't have an edge unless you're a bank or broker, or another institution, based upon inside info, or research, etc. Why then even risk capital trading?
You have an edge by being smaller, easier to get in and out of positions, no boards, committees, or clients to answer to. You can have an edge having a written plan, trading it with high efficiency. You have an edge by being patient and taking only the trades which have a higher probability. High efficiency would be mistake free or nearly mistake free, by following your plan and the rule set for the particular system. This doesn't mean you won't have losses, as we know they are part of being in the business of trading.
Losses taken following rule based automated or discretionary trading are more positive, than winners breaking them in the long term. The former reinforces good behavior, while the latter reinforces poor. While getting away with poor behavior is possible for a time, eventually we get caught and punished. Continued consistent positive behavior is rewarded with profitable results.
There is no harm in halting trading to reevaluate. One can drastically reduce capital in one of two ways, one to a few large losses the fast way, or multiple small ones the slow way.
This is but a small amount of info. I wish you well on your path back to profitable trading.