Welcome from Florida.
Hmmm, tips? Well, I see you are from New England so a good place to start would be some non-perishable food and some water, I have heard told that sometimes up there winter storms could knock out power for a day or two, or more.
I'm assuming that you have enough warm clothing and blankets if your heater doesn't work.
And a source of light - and NOT candles, too easy to burn down the house.
Other than that, visit here every day, read anything that sounds interesting, And i'm sure you can have some good ideas rather quickly.
Welcome buddy! Ditto on Rice Paddy Daddy...read anything that sounds interesting. Youtube is a great source of visual info, and thesurvivalistblog.net has a lot of info as well. I recommend starting with food and water. Little bits here and there when you can, save up. And stay up on your homework! It's great to see someone your age "looking ahead".
Nice to see another teenager here. My advice, gather as much free information as you can (youtube is in my opinion the best source for this) and then PRACTICE. Practice any basic skills you can as much as possible. Learn for yourself what works and what doesn't. And as soon as you can, get a job. Quality gear isn't cheap, and cheap gear isn't going to be what you want to buy. You'll need money.
Hello, and welcome to the site. I don't know your plans, but you are young with most of your life ahead of you, like already mentioned, a few years in the military might be a good idea, You would learn a lot, experience a lot and do a service to your country. If that isn't an option for you, I'd just say learn as much as you can, sit down and work out a long term plan.
My two cents. Get an education and then a job. Set aside part of your income each month for savings and part for prepping. Also, learn a trade such as electrical work, plumbing, metal fabrication or mechanics. It will help you in your prepping and if your chosen job is downsized or lost at some point, you have another way to make a living.
Welcome from Southern Minnestoa. All the above advice is good. Join the military. You get an education and get paid at the same time, then you can get another education when you get out. One caution I would advise is: Try not to get into smoking. It's expensive, it is obviously harmful to your health, and if SHTF, you may not be able to get or afford cigarretts or other tobacco. Then there is the withdrawl period that will last most of your life. It's a hard addiction to kick. Save yourself the grief and the money and don't start. I did x-ray exams on a 23 year old who chewed snuff, and developed esophageal cancer and died by the age of 24. The best thing is to avoid it all.
I've learned sooo much on this site. And don't be afraid to ask questions. All the guys and gals here are more than willing to answer questions and share knowledge.
Don't for get the option of joining the reserves or a Guard Unit. It will allow you to gain skills, maturity, responsibility, a side income, and even help pay for college if you so desire. I am not certain, but you may even be able to use the benfits to pay for a trade school as well.
What ever you do, don't forget to live life. Do not become fixated on a catastrophic collapse and forget to be young. You only get one shot at youth, don't let it pass you by. That being said, it's possible to enjoy being young and still have a plan.
With the simply stupid cost of a 4 year degree these days I am leaning toward recommending learning a skill/craft/trade that will be in demand, you enjoy doing, and you can get licensed/certified in a couple of years. You start earning much sooner than a kid who is racking up tens of thousands of dollars, or more, in loans, and you don't start life in a deep financial hole.
Save your money until you can afford quality gear that will last and not need to be replaced after moderate use. Take your time and build your preps slowly. Start out with a goal of 3 days of preps, then a week, then two weeks, etc, etc. Before you know it, you will be well on your way.
Always accept the opportunity to learn. It's awesome you have your Grandfather (saw it another post) to learn from. Pester him for knowledge, he will relish the opportunity to teach you. Don't forget to learn things such as mending garments, gardening, and how to can foods for long term storage either. Throw any concept of "that's womens's work" out the door right now, because it will possibly be your own young man's behind in need of those skills someday.
Oh, and Welcome to the site from blistering hot Texas!