Jennifer-
I cannot tell how old you are or how much retirement savings you have at risk in the market.
It sounds as though you have approximately $3,000 per month of income, and your mortgage payment is less than 20% of that. Are there factors that might affect that payment in the near-term (is it an adjustable rate? do you plan to not be in the property much longer?)
1) I'm 47
2) I currently only have $2600 in the stock market -- only in investment accounts, no retirement account yet.
3) My monthly income is about $2950 per month -- 0% tax bracket and earned income credit of $500.
4) My mortgage payment is $557 which is 19% of monthly income -- fixed rate at 4.65%
5) Home is worth $78k and I owe $54k on it.
6) I can save $1800 per month after the frugal hacks -- about 61% savings rate.
7) We plan on living in this property the rest of our lives -- we're happy here.
Ideally I'd save like $5-10k in emergency fund, but I am finding I am using Robinhood as my emergency fund because I can resist buying some stock bargains right now -- currently invested in AAPL, FB and KSS. [I just bought another share of FB this morning.] I have about $1500 cash in the banks.
I am going to max out my Roth IRA by April at $5500. Will put into VTI probably.
EDIT: I have no credit card debt or other loans besides my mortgage.