I've lived, travelled and regularly go on holiday solo to Thailand. It is very safe, or as safe as anywhere if you're sensible and careful. People are friendly, accommodating to foreigners (when in tourist location especially) and if you try to learn Thai you will make so many friends. * I'm Not retired fyi *
If you go into your local library, not only can you use the computers there, but the staff are usually on hand to help you with such things, or provide you with a session for navigating/ learning yourself 👍🏽