Hi Hannah,
I don't think you will like the advice I have to give, but we all need to start somewhere, The first question I would ask is do you have your own home now? I really suggest you keep learning from bigger pockets and all the ways to grow wealth through investing.
When you are in a market like anywhere on the front range it will take cash to find an investment property like the one you are hoping to find. I understand the desire to want to start investing now, but for some of us it takes time to build up to the point of buying.
My Advice to you would to keep learning, growing your savings and reach out to a lender you can rely on to help you get to the point you need to be at to buy this investment property. The lender will help you find out how much you can afford and help you map out the way to get there. build your credit score up while building your savings.
Just a fast example for you.
say you buy a duplex in Co springs average price is $350,000
I take it you are looking at using an FHA you are looking to use 3.5% down
Just to get into a property at this price point at the minimum down you are looking at
$12,250 not counting closing costs which would be around $4,500 I would say to get into your first property you should try to have $20,000 in savings even if you went with loan assistance program called CHAFA you would need to bring about $10,000 to closing.
I don't say this to discourage you, It took me over 3 years from when I started learning about investing until I was financially able to invest. But most of all learn every aspect about how you will finance your investment and start working to make that happen! Best of luck