How to change my blip color?

Screenshot_143
How to make blip in blue color?

Think you also need this: GET_BLIP_FROM_ENTITY - Cfx.re Docs to get your own blip.

It’s a player blip so you should use

-- https://docs.fivem.net/natives/?_0xDCD4EC3F419D02FA
local playerBlip = GetMainPlayerBlipId()
-- https://docs.fivem.net/natives/?_0x03D7FB09E75D6B7E
SetBlipColour(playerBlip, 3)