Selling away your asset would not be the best for you. In this situation, you already have 60k in equity of the house and 18k in credit card debt. A good approach would be to do a cash out refinance on the house. Like someone said before, you can pull out 90k (75% of 120k LTV) , or Home Equity Line of Credit (HELOC). A cash out refinance would put money in your pocket to pay off that high interest credit card debt. Credit card debt is bad debt, and interest rates usually range in the 18-25%.You want to pay that down before doing any investing. Keep in mind that this will allow you to keep the house and rent it out. After all, your cash flow seems decent. Use the BiggerPockets calculators and YouTube tutorials to figure out additional monthly expenses you should put aside each month. You will learn what your true cash flow will be.
After having your credit card debt paid off and having a cash flowing property, you'll be in a good position to use that VA loan to buy a multifamily and house hack!
Good luck! We're here to help you along the way.