Here are some screenshot https://imgur.com/a/LBwROCY how I use mod menu without any issue. In this screenshots you can see I use Stand menu to inject YimMenu bcs this YimMenu is an older build version by original creator and someone updated it for working in new GTA 5 updated version.
Without using Stand you will get desync attack by other players. So must inject Yimmenu with Stand for a great gameplay experience.
Step 1
Download YimMenu form the link : https://github.com/Mr-X-GTA/YimMenu/releases/tag/nightly
Step 2
Download Stand from the link : Stand for GTA V
Step 3
Download FSL from the link : UnKnoWnCheaTs - Multiplayer Game Hacking and Cheats - version.dll and follow the steps to how run the FSL.
Step 4
Open Stand menu and go to advance click ADD button and select YimMenu.dll.
before going Step 5 make sure your battle eye is OFF in Rockstar launcher and go to Epic->Library->GTAV->Manage and type "-nobattleey"
Step 5
Click Launch button on Stand and go to story mod then go to invite only session and make a 10M by pressing the "~" key on your keyboard and press enter to get 10M instant money also you have FSL so you are safe and low risk. Go to public session and enjoy.