Washing Your Hair
I know this changes from person to person, but I am someone who can get away with washing my hair every 2 or 3 days. Too some people that may seem like not very often, but that is just how my hair is. It doesn't really get greasy, so I never have to wash it daily. I think that this has made a difference with my hair growth, because it means that I don't have to use heat to style it everyday, therefore it stays healthier for longer.
A tip that I have when washing your hair is to use a good conditioner (it doesn't need to be expensive) and leave it in for around 3 minutes before washing it out. When washing your hair, you should also focus shampoo towards the top of your hair and your scalp, and focus the conditioner on the lengths of your hair. Avoid putting much conditioner around your scalp, as it could cause your hair to become greasier quicker. When you are applying shampoo, it is a good idea to give yourself a little head massage too, as this can improve the circulation and help it grow.
Another good thing to use is a deep conditioner. This is good to use every couple of weeks and I have found it to be very helpful, as it moisturises the lengths of your hair and is also especially good when focused on the ends of your hair. This is because it will help to battle dry ends, caused by heat damage and can prevent you from needing your hair cut so often or having to have as much cut off.
Styling Your Hair
Everywhere that you read online recommends that you shouldn't use heat on your hair if you want it to grow faster (which seems impossible). In some cases, this may be necessary, but I have grown my hair out using straighteners and curlers the whole time. I do not frequently blow dry my hair, purely because I usually can't be bothered. Most of the time I just wash my hair in the evening and let it dry overnight. Something that I do like to do to avoid heat, is put my hair in french plaits when it is damp at night and then take it out in the morning to give it natural curls and this is how I have it in the picture above, (which was actually taken almost a year ago, so my hair is a lot longer now).
I will usually straighten or curl it in the morning, once my hair has completely dried overnight.
I think the most important thing to focus on when using heat on your hair, is to find a good heat protectant. There are so many that you can buy and they don't cost very much, but make a massive difference. Again, I mostly focus these at the ends of my hair because this is where your hair is most likely to get split and damaged. It also helps that I don't wash my hair everyday, because if I straighten or curl it, it will usually last 2 or 3 days, with only a couple of touch ups.
Cutting Your Hair
I know that this isn't actually a good thing, but I barely ever get my haircut. Most hairdressers recommend haircuts around every 6-8 weeks, so they would probably cringe finding out that I probably only get my hair cut around three times a year. It's not that my hair is in bad condition, in fact it is actually in quite good condition, but I just get my haircut as and when I need it, which is usually not that often, but I know that this will be different for everyone.
I would recommend drinking lots of water, because this helps your blood flow, which will also help with hair growth. You should also ensure that you have a generally healthy diet and have a variety of vitamins and minerals. Sometimes if you are missing certain vitamins or minerals, it can lead to hair loss, which is the opposite of what you are trying to achieve.
As far as dyed hair goes, I cannot really give advice because I have never permanently dyed my hair, but I don't thing it would become a problem, unless you are dying it very frequently, but again this would depend on your hair type.
The most important thing is patience. My hair took between two and three years to get it to the length I wanted it. If this is too long for you to wait, there are always hair extensions.
I hope that this is helpful, to anyone trying to grow out their hair. If you have any questions or other tips, please leave a comment below.