Wow...
Normally I would post a few chapters on the basics of scientific research....but I just don't have it in me this time.
Besides, you sound like you just want to do it anyways. You aren't really interested in listening to good advice.
You already know the answers, anyways.
You should not be taking MDMA with Amp in it.
If you are talking about ONLY speed, then the cross tolerance is minor.
MDMA does increase dopamine, but speed is 8 times stronger a dopamine releaser.
A little info - MDMA damages serotonin axons, especially in higher thinking/emotional regions of the brain, the prefrontal cortex being the most advanced.
Serotonin serves the primary function of contracting the smooth muscles surrounding your intestines...but in the brain it has a profound effect upon blood distribution.
It is also a modulator of OTHER neurotransmitters!
That means that some of your dopamine pathways are deprived of function because nearby serotonin neurons are NOT working.
The prefrontal cortex is the most sensitive region of the brain to MDMA damage, because it is furthest from the brain stem and the serotonin axons are fiber-like and very thin. It is also the home to your primary reward pathway, known as the meso-limbic reward pathway. It flows from the PFC, your highest emotional/thinking center ALL the way down to the limbic system, where your primal emotions and basic functions are carried out.
By using MDMA, as well as other serotonin drugs like doctor-prescribed SSRIs, you can damage the function of the most advanced part of your brain.
This damages your perception of the world, your personality, and diminishes the perception of pleasure from everyday life.
Alexander Shulgin, the man who gave us MDMA, said that the wait time is 90 days between doses.
Since you didn't follow this guidline to begin with, here is another...
LOTS of research on former MDMA users suggest that recovery from MDMA induced damage takes 12-24 months to recover from.
This does not mean that the PFC is reinnervated - in fact there is plenty of evidence to suggest that dennervation in this region is PERMANENT.
However, 'clinical' recovery occurs over this time frame, meaning the brain compensates in some way allowing the person to feel 'normal' again.
If you cannot wait at least 12 months, you need to ask yourself if you are addicted.
The definition of addiction is continuing to repeat a behavior AFTER real consequences have begun.
LSD can also cause permanent changes in people - I know several. One of them is 50 years old and still sees tracers!
LSD plays with serotonin too, especially in the visual cortex.
You need to lay off ALL serotonin drugs for at LEAST one year.
As far as the amp goes...
It is a dirty fucking drug, no doubt about it.
But as a dopamine agent, not a serotonin agent...the cross-tolerance is not an issue.
HOWEVER, when dopamine activity in the PFC and other cortical regions is compromised, as it is with serotonergic damage, an increase in dopamine will often target the limbic system more than normal. When the balance of dopamine is TOO heavily tilted towards lower brain regions, psychosis is the result.
SOOOO.
Dose VERY carefully. You can always take more LATER, remember that.
Recognize that your dopamine system is NOT functioning normally, and this is one of the reasons you have felt so shitty.
By raising your dopamine levels globally, you may actually feel NORMAL...for a while.
But you ARE at an increased risk for psychosis, especially in higher doses.
You will also feel a harder CRASH when you come off the amp, due to a greater than normal loss of dopamine in cortical regions.
This will encourage you to continue using. BAD IDEA.
Recommendations - exercise daily.
Physical exertion causes a release of Brain Derived Neutrophic Factor in several brain regions, including the cortex.
Not only will this encourage STEM CELLS to generate NEW NEURONS, but it also causes RESPROUTING of serotonin axons.
For real.
Good diet....
And get some Piracetam if you insist on continuing to do pyscheclics and amphetamines.
It increases serotonin and dopamine in the PFC, which will potentiate the effects of the drugs.
It also improves blood flow between the two hemispheres.
It may reduce toxicity as well, but this will NOT offset repeated use.
But for God's sake, give your brain a LONG rest.
Or join the fucking club...