You may need a visa for Thailand if you have a Myanmar passport
Visa options for Thailand (2)
Electronic visitor visa is required for trips longer than 14 days for Tourism
Travellers need a visa to visit Thailand for Tourism for more than 14 days. Travellers do not need a visa if staying for 14 days or less in Thailand. A Thailand eVisa is the fastest and easiest way of obtaining a visa for Thailand because travellers can submit their application and supporting documents online. Once the application is approved, travellers receive their eVisa confirmation electronically. A valid visa is required to board the flight if staying for more than 14 days. If the visa is expired or doesn’t match the traveller’s passport information, travellers will not be able to board their flight.
This is not offered by sherpa°.
Apply on the government site.
You don't need a visa. You can travel to your destination for a limited stay. Be sure to check other entry requirements and how long you can stay for.