@grammato3

I bought the Alpha Stim in April 2025 and use it now daily. I should use it twice a day, morning and before bed. Used often, the effects are lasting.
Neurofeedback, this will take time. Sometimes I feel placebo effect but know that NASA uses neurofeedback to train astronauts. Its mostly used for children but slowly being used by adults also. I have seen the research data but it also depends on person.
The first 5-10 sessions is to assess a baseline of your brain waves. My experience took 1 session because I use the Alpha Stim daily. Without it, changes to my sub-conscious would take longer.