1- its always better to make many cycles of mixng and letting separate before pulling out, rather than just letting it sit. There is no rule on 'how long should I do this for' just as there is no rule for such thing when making naphtha pulls. Most alkaloids should be pulled very quick, but logic says that if you do more mixes, probably more alkaloids will migrate to the non-polar solvent, though there is probably a moment when it stops being worth it to keep mixing because it wont dissolve much more.. Where is this point? Who knows... Just mix a few times and thats fine
2- no need to warm but you can do it if you want
3- you can do the washes if you want, specialy if you feel separation wasnt very clean, but several people dont really do it. Once again, do what makes you feel better
4- Yes toluene needs to be evaporated, OR, you salt the alkaloids out with FASA, FASI, FASW or vinegar. FASA and FASI should precipitate your alkaloids right out of the toluene (just let it stand after a few days after adding the FASA/FASI to crystalize. Read the salt-precipitation subforum for more info). FASW and vinegar would an acidic water layer (you do like a 'wash', just mix it and let separate) that you would pippette out and evaporate, leaving you with either dmt fumarate (solid) in the first case or dmt acetate (goo) in the second case. Those are good for oral ingestion, but if you want smokable freebase dmt, mix with excess sodium carbonate, add a bit of water and mix the paste, let dry and pull 3x with IPA or acetone, and evap that (either by itself or into some herbs for enhanced leaf or changa)
This is recommended because it avoids evapping the nasty toluene, but alternatively you can just evap the toluene..
5- Do at least two toluene pulls to get most stuff out
6- It is more efficient solvent so you can use a bit less toluene if you want.
by the way, I strongly suggest next time checking out using limonene instead of toluene. Its much healthier, smells so much better and you arent giving money for the petrochemical industry