Algo QUERRY

Hi everyone, i want to know there are many apps which offer ready made no coding type algo like in dhan/tradetron/algo test etc.

Now my query is that are they useful? Can they work in the real market scenarios of today?

Can those algos be trusted with your hard earned money/capital?

Not everyone knows coding or python or can make a successful algo, so can we use any of this to actually trade and earn something?

I have tried manually trading fno but losses are more than profits and nobody would actually guide one with a successful manual strategy to actually earn something from the markets as such , so what should one do??

Kindly guide.