It's easy since you are the lender you could easily post your lending service on the Lending thread, post your lending agreement, etc. But since you are still a jr. member you might want to be familiarized here in the forum you make sure you know what you're doing because lending is a risky business there are a lot of cases here in the forum where lenders lose their money so you should be aware of that.
Still, you are the one that is going to approve every loan request so you could just pick trusted members to avoid getting scammed also don't forget collaterals if you're suspicious of lending to other members.
The main factor that must be prepared by the owner of the loan service must be to be able to select the borrower's account history, collateral guarantees, and the borrower will not leave the account for any reason because the reputation of the account is more valuable than the loan.
The risk of a loan cannot be ignored even though we are very careful in choosing the borrower's account, so OP must understand the risk and don't give high loans