For Stackers Only: What’s your current dose and what made you stack?

I was up to 4.5 mg of Tirzepatide and so exhausted I couldn’t exercise. Stopped and worked my way up to 3-4mg of Reta and energy great but had major sleep disturbances. Backed off Reta and added Tirzepatide back in (2mg each) and sleep improved but not ideal. Still experimenting to hopefully find dose that avoids extremes of exhaustion sleeplessness. Not interested (yet) in adding other peptides.
What’s your experience?