i've learned the hard way that people come and go in your life, its up to you to keep them in your life but they wont always be around.
you cant rely on other people all the time to hold you up or carry you through life, sometimes you have to walk on your own two feet and make your own mistakes
its nice to have someone there to guide you but if you don't make your own mistakes you cant learn from them.
also, just because people make certain choices, it doesn't mean that choice is right for you. if a person doesn't enjoy something, or something doesn't feel right for them, never for one minute think that its that way with you, each person has their own needs that they need to fill themselves. decide what YOU want to  do instead of following in the shadows of those around you.
im not saying you cant gain anything from the advice of others, but if you become attached to that one person and find your living off their dreams and goals, what happens when that person leaves? where does that leave you?
it always makes you a better person to be strong and stick through things in times where you feel like giving up or you feel like its not going to work. don't give up on something that could be the best thing thats ever happened to you.
basically, be your own person, don't be a shadow of someone else's.

favourite bands.

I hate it when people get all protective over a band that they apparently are the biggest fans of.  There is always going to be someone somewhere else in the world who loves them more than you do, yeah you might have known them since their first single, but that doesnt mean your their biggest fan. My favourite band is paramore. Not because of Hayley Williams, but because everyone else likes them, but because they were one of the bands that i first got into and Hayley was a big inspiration to me and I'd love to meet her and im not going to lie and say ive known them since their first song because I havent. They were recommended to me by a freind by the time their second album was out but that doesnt make a difference. I could love them more than a person that was there to buy their first single. but again im not going to say that im their biggest fan because I'm not. I love the band and i just wish that other fans of bands wouldnt compete to be the biggest fan. a band should be a way to get closer to people, sharing interests not a trophy to be won.

feelings

when you put yourself into a mind set, you stay in it, like a kind of trance until you have the strength within yourself to pull you out of it. A good example of a mind set is when your heart broken and all you can think of is how much you miss that person or how much you want to turn back time. But as long as you keep yourself in this state the worse its going to be. You're never going to be able to change or speed up the process of healing a broken heart but, i believe that as one emotion takes over you, the other ones are diminished. So, if you keep yourself happy, surrounded by friends and family then your mind has no time to feel sad or alone. there are times when you can't help it, your bound to be alone, but trying to keep this time to a minimum will help you get over heartbreak without you realising the process is carrying on behind closed doors.
Trying to realise the positives behind the negative time you are going through can also help. as emotions are weighed out, so are relationships. as one diminishes, the others take over.  So its all about balance.

this may be pretty obvious but i feel writing down your advice to yourself makes you realise it more as advice, rather that you going insane and talking to yourself. and its always there to refer back to if the time ever comes that you feel the same.
even as i write this, i am not alone. constantly having someone who means a lot to you around you helps a great deal, because it reminds you what you have rather than what you've lost.