<human>: Can you condense the text into three sentences or less?

Throwaway just because my regular username is used between multiple sites.

I graduated from a community college without student loans at age 25 in 2012. I live in the mid-south area of the US with a fairly low cost of living, and I'm super frugal. I'm now making 60k a year at my job that I started a couple months after graduation. I saved nearly everything I made for 8-9 months while living with my parents, and I bought a house with a 10% down payment and got a 108k 15-year mortgage with a 3% APR. I had a lot of expenses starting out of getting furniture, appliances, lawn mower, etc. I have also upgraded my car, which was having mechanical issues, to something much newer. Early on I was overpaying on my mortgage, but stopped while trying to build my emergency fund back up after buying the car. At this point the only debt I have is the mortgage, and I've already purchased everything I need for the house.

I started a 6% 403b at work in 2014, maxing out the 50% employer matching. However, the percentage is calculated on base pay and doesn't include shift differentials or overtime. I did the math for the year 2014 and my actual contributions were 4.2% of my pay.

Right now I have 23k in the bank, just in a checking account. My six month emergency fund would be around 10-12k.
<bot>: 60k/year income. My only debt is 3% APR mortgage. 2012 car. 23k in the bank. Maxing out 403b employer matching contributions, which is quite low percentage-wise. Looking for investment advice.