You might look at Susi Air in Indonesia for time building.
....or stay in the USA on an education Visa while getting a Master's. Flight instruct to build time while studying. That way you can get up to at least 500 or 750 or 1000+ hours before you go back to Thailand and perhaps some chance to stay in the States might present itself in the meantime.
That additional flight time would set you apart from the hordes of Comm-Inst-Multi kids, and please try not to pay ridiculous amounts of money for your training for an airline. A reasonable bond is the norm, but don't pay up front, i.e. Lion Air pay to fly scheme.
....oh and marrying an American girl could prove helpful in the short term
TP