I feel like this a lot. Ive always been so in awe of the world, mine is all related to travel.
I feel i am missing out on all these amazing views, waterfalls,wildlife. I want to see mountains in China, lakes in Canada, sunsets in Thailand, I'll never life long enough to cover even half the things I want to see.
But I realise how fortunate I am to even have the chance to experience even some of it. I see people who live in poorer countries and they have no chance of getting to see anywhere so I have to be grateful that I can see some of it.
I thought to myself one day, if I break my life up into 3 sections how much is realistically going to be amazing?
I figure if over your lifetime you can have around 20% amazing times/travelling etc, 20% unhappy, ill health/ grieving times then it's pretty fair to expect that 60% will be pretty standard and general everyday life and that's OK.
I make sure we prioritise travel and holidays in our budget and each year we tick things off our lists, I'm 41 and been to many places but there is so many more to go, hopefully if I live to 80 I'll have a huge chunck ticked off my list all being well.
If you have kids then it's fair to say these years will be more of the regular monotonous routines but look at your life as a whole, there will be many opportunities to do amazing things.
One good thing I started to do was at the end of the year before you make a list of resolutions make a list of the things you have done that year,( look at your camera roll because you seriously forget half of it). When you see it all added up then you think yeah I did a lot of great things this year (as long as you have made the effort to do them).
Failing that then say sod it, buy a campervan and head off into the sunset!