Hello everyone

I'm a lithuanian passport holder living in the UK. I'm planing to go to Thailand in June. I'm traveling for 2 months, hopefully traveling around Thailand's neighbouring countries as well.

I'm really confused about the Visa I need as my return ticket from Bangkok is after 2 months. Does it mean I have to get it for 2 months? or can I apply for 30 days, then leave and come back after a few weeks and gett fifteen days visa? I've heard the thai authorities have become more strict with visas for backpackers, any idea?

I would be really grateful for any tips or help.

Many thanks!