Mantras vs breathing exercises

[Hail goddess diana]

Hello everyone
Need your advice regarding
Manifesting my thoughts

What are your experience with mantras
In regards to raising energy
I have tried visualizations and all kinds of breathing exercises
The breathing exercises specially breath of fire
When done for a few days at high reps starts to manifest my thoughts in just a few days

But the problem is too much breathwork
Can fuck up the nervous system as it has happened to me in past

Now regarding mantras I don't know if mantras
Can raise energy that fast , but I also believe they could be safe for the nerves even in high reps

Now as stated in jos vibration is the strongest
But I have not experienced it yet

Please share your experiences regarding mantras
Especially which mantras to use for increasing bioelectricity