We have been tossing and turning about doing the digital nomad life as we acknowledge both pros and cons and like you, we have met a few on the road. Some love it and some regret it, but feel like there's no turning back to a 9-5 job/48-50 weeks a year to enjoy 2-4 weeks of freedom. They are still searching for their calling in all of this. Like @waybeyondpadthai, we would suggest 'the base' idea. Some people find it there in Chiang Mai, others in Bali, Ho Chin Minh City is a popular one and Becca lived in Siem Reap and knows a few there. We're in a 'Steemit Travellers' group on Discord (invite link can be found in our posts in the footer) and the founder of the group @for91days have a base in Valencia, Spain and they take trips all year around, but are only in one spot for 91 days (hence the name). They love Valencia, but love travelling too, but don't want to be on the move all the time.
Like us, you're young (younger than us too) and have plenty of time to travel extensively. Where you have traveled and what you have done is incredible, so don't get disheartened about getting this feeling. Many are envious of where you have been (us included - would love to see Central America).

Btw, nice intro and we managed to get the 'fake' Smooth Q on the day we flew out to Singapore (Thursday). Did a few shots whilst we were there, but haven't seen them yet.