I am 19 this year and have about 10000 in savings. Any recommendations on how to diversify my investments?

It really depends on how much time you have and what is your risk appetite.

I'm currently 19 and I just started investing in May, when most stocks were at their 52w highs (fml), but i held on and slowly averaged down on most of them, and now I'm on the green on everything! Since you're still young just like me, I'd say learn to stock pick, it really isn't that hard, there are many videos and articles you can read and watch to learn what criterias to look for in a company etc. There are also many different types of investment strategies, so you should go search it up and see which suits you more ! For me, I'm using the dividend growth strategy but with a mix of Value Investing!

An advice I'd give for a beginner just starting out, don't worry when your investments drop 5% or even 10%, if you did your research, the company will eventually pull through and bring you profits ! I was down almost 5% on my 2nd week of investing but I held on strong and now I'm riding the green !!

Good luck on your investing journey !!

As an NSF myself, I started out with index funds first. That's because index funds tracks is a basket of shares, means you are basically diversifying into multiple counters at once.
Forr a 19 year old, I think its best to gain knowledge while handling the practical part of investment. Starting off at 19 is a huge advantage that many people wish to have. Take advantage of your youth and make mistakes and learn from them and you will grow to become a seasoned investor in no time.

Analyze your own risk portfolio in investment first!!

You have to ask yourself if you are a risk taker or not. If your investment had bad returns, what will you do? Are you able to sleep at noght comfortably if you lose a lot of money?

Investment is all about risk. If you are not risk taker, its better to stick to those safer financial instruments! Or just get endowment plan

I suggest you go for an investment course or read up on investments / personal finance. Then you will be able to decide for yourself how you should be allocating your money.