I still think you should go now before the regret sets in.
You could postpone it for a while, but what happens when you jet off to the UK as you planned? You get there, work hard to establish yourself and put the trip on hold. Then when you're finally settled you're looking at 30. What about marriage and kids? Plenty of pressure for both from most women (not all, but most) as they feel their biological clock is ticking. So you decide to get married, there go the funds for that trip. So you work hard after you get married, but sooner or later a kid pops up (considering you're in your early 30s here). Say goodbye to most of your free cash, but more importantly almost all of your free time. So fine, you decide to stick it out for a few years until you feel comfortable enough to dump the kid at your parents for a month to go on an epic trip, but by now you're in your late 30s. 40 is around the corner, you're in a senior position and have to graft hard in the hopes of an early retirement, because if you manage to retire at 45 or 50 you still have a good few years left to enjoy life. So you postpone it once again. But by now your kid is growing up and dreams of travelling in Europe, which reminds you of your dream. You sit at 42, never having done your epic trip and remembering that it was your girlfriend (now wife) was the reason why you help back. Resentment has been growing for years and you have a blow up, resulting in a divorce. The wife takes everything, dreams of early retirement fade as you have to work your arse off just to rebuild your life in your mid 40s. You develop a drug addiction and a penchant for young women with loose morals. You get aids and ebola at the same time, and slowly waste away while watching your child tour Europe on his mothers account (with the money she took from you). He loves his mother more because she sent him to Europe, and daddy is just a washed up, sick druggie. You die alone, never having experienced Europe, the end.