P2P exchange of MYR to THB in Langkawi

Hi! I'll be travelling to Koh Lipe from Langkawi soon and will be needing some Thai Baht. I am not a Malaysian national so don't have any digital payments account there but will be carrying some Malaysian Ringgit.

Since a lot of people come from Thailand to Malaysia, I am thinking if there is a peer to peer currency exchange possible in Langkawi between THB and MYR so as to save on bad exchange rate of some currency exchanger?

If you are aware of some other ways, please do let me know that as well. Thanks a lot!