Let's talk money...
Most places use touchless pay with your phone or card, but some shops will only acept Euro. You can likely get a better rate at your home bank, but there is a reputable bank very near the guesthouse. I recommend getting Euros there if you need. Remember to accept the local rate for fewer fees and better exchange rate. Be sure to notify your bank and credit card company of your travel plans so there are no unexpected pauses on your account.
There’s also an app called Revolut that is very helpful with international purchases. You can link it to your accounts or place money in your Revolut account to avoid fees.
Euros will be for tips for your drivers, guides, etc and for smaller shops or artists. Here’s a quick article that explains the benefits.
Tips: a moderate tip of 10-15% is very appreciated. If paying by card, It is up to you to tell them the amount you’d like to charge to you card if you want to include tip. You will not be presented with a receipt to add a tip after.