I Need some tips/to vent or advice

Hey guys, I’m currently travelling at the moment around Thailand and it’s meant to be the best time of my life but my insomnia came back from basically day one of being here and it’s kind of ruined a huge chunk of it for me :( I had insomnia last year and I sorted my sleep out and was sleeping for about 4 months with no issues, I think it’s all been caused by drug abuse and smoking. Well I started smoking again and was fin but since I came travelling about 7 weeks ago I’ve started having bad nights sleep again and really struggle to get to sleep. I’ve quit smoking again and taking supplements but sometimes it just really gets me down as this is supposed to be a huge experience and i feel like insomnia of ruining so much of my happiness here.

Has anyone got any tips or advice of you’ve gone through something similar or what worked for you to beat it, and I just wanted to vent with people that actually understands what I’m going through.