Sorry for delay tipping
The ingredients of your multi vitamins are very well sourced and represent the best of what is available, but as Hat said, there can be a lot of in there that is simply not required, and can cause further complications. Again, the D3 if there is a known deficiency.
Just to add to what Hat said, the KSM would need more than a week's trial ideally to justify the effects. You will probably need to play a little with the respective doses of each to find the correct dose for yourself. My sweet spot was 1000mg (1gm) of KSM, but note that any ashwagandha needs a tolerance break every month of a few days to maintain efficacy.
The Suntheanine you will need to start low and work your way up (maximum of 600mg). Can be taken regularly or as needed. Does not need as much time to build up in your system, but again you will need to find the right dose, if it works for you.
Please report back when you can as we are always keen to see how our members get on with supplements.