Chuck off all the casual dating vibes, hookups, all those dinner dates, lunch dates, shopping dates, spa dates, and all the other casual stuff before stepping into a committed relationship because the honeymoon phase after getting into a proper relationship is completely different from the time you spent before accepting each other as true loving partners, even though the honeymoon phase of a relationship consists of all kinds of fun, romance, and intimacy. Most couples don't realize the fine line difference and they act and behave as if they are still hanging out casually even though things around them become serious in terms of committing to each other. Hence, a person must know a few things to do during the honeymoon phase of one's seriously committed relationship!
Firstly, once a honeymoon phase ends, you can never experience it in your lifetime with the same person and that's the very reason why you must spend most of the time with your partner instead of taking your partner for granted soon after getting into a relationship. Just because your partner accepted your proposal, doesn't mean you can relax, ignore, and neglect the crucial times of your relationship.
Live in it and don't try to rush things up. This is the only phase where you can be as silly, romantic, kiddish as you can because when you start realizing things like responsibilities, growing up together, investing in each other, getting engaged with each other, everything around you becomes a bit intense and you can't take them as some silly stupid stuff. So, do not chase behind those serious commitments, be it personally or professionally. All you need to do is to calm down and just go with the flow.