1. Save up and go do a major trip once every 2 years maybe? You don't always have yo do international. Or go do stuff in off season even for a long weekend if possible? Be creative. We have the budget to do international trips but don't go annually as there's perfectly amazing destinations domestically. But you should go where you all want to go and not worry so much about whether you "should" go or not.
If you're going just to get out and about there's even more local driving adventures as options. If you are going to open your eyes to explore an interesting place - really there's a world full of them and you can prob find one that could fit your budget even if it's a goal you need to save up for. It's not just Paris, Venice or Madrid that's amazing. Go off the beaten path.
2. We used to do 1 major summer, 1 spring domestic trip and a Dec island trip with 2 kids. Post Covid with insane prices and teens we skip the Dec holiday trip altogether and do 1 major summer, 1 spring and maybe another long weekend trip to beach or local over summer as well. Instead of the islands, we hit Costa Rica or Belize as we find the pricing better and you get the same quality beaches even if a different kind of vibe and look. We also do a lot of trips out west to combine with national parks as the resorts are more interesting than those here on east. When the kids were younger we would do more local beach trips. I can't say enough about seeing the US even though I'm very well travelled. The idea is you go where you can go and appreciate the beauty, experience and a different perspective or culture and even in the US that exists