Where are you based hun?
Best thing you can do is to eat well, as well as the usual suspect biotin and sulphur are helpful to prevent hair loss and also to build healthy hair, zinc is also essential but you probably know that
Massage stimulate growth by bringing blood flow to the scalp, this makes hair grow faster and also stronger. Can be done at any time, use the finger tips, start at the hairline spreading fingers between theears and front hairline, circle the fingers slightly and push a little bit each time you circle, gradually going towards the top of the head. Then criss cross and pull back over the top and onto crown of the head. This is lovely at the back of the head where a lot of tension is held as well.
When you apply conditioner, I have found Aussie 3 minute miracle to be amazing if your hair feels brittle. Put a shower cap or plastic bag on your head and wrap in a towel, leave for half an hour or so. The heat from your body builds up in the plastic and helps the conditioner work on the hair.
Rinse really well and give it a final rinse with cold water, this closes the cuticle layer on the hair which improves the shine and the strength of the hair, on the scalp it will increase blood flow and is one of the best ways to do this. Wrap you hair in a towel and squeeze to get water out, don’t rub it, this damages the hair. Leave wrapped in a towel for a bit and to dry natural if you can, leave in conditioner can be used if your hair can take it, my hair is very thick and coarse so benefits from this but thin hair would be overloaded.
Also think about what you do with you hair during the day or at night, putting the hair up repeatedly will break the hair, twisting or playing with your hair lots will also damage it and make it thinner. I can normally tell when cutting hair if someone plays with their hair because it is much thinner on one side!
Vitamins are worth taking but need to be taken long term, but that’s up to you, I think it is better coming from your food. Add an avocado to a green smoothie in the morning, use different oils when coming, etc.
Hope that helps, heaven help you when I start talking hairdressing lol…I tend to talk alot!