How should I save for my wedding, BTO, studies and what should I do?

I think this highly depends on your current income and how much of it you're allocating to your savings. There's going to be quite a bit of planning to do. Are you paying for your school fees on your own? Do you need to save as you go? How much more can you allocate to savings for your future BTO?

Assuming that you'll be paying for your wedding with your savings, that brings you down to 5k (probably a bit more since you still have a few more months to save)?

Even if you successfully BTO next year, you'll still have to wait at least 3 years before you collect the keys and make any big payment. Don't forget renovation costs. Your HDB loan will only be lower if you're still studying full-time (likely working part-time?) at the point of assessment. That might just play well for you since you're likely to get more from the EHG with a lower household income.

Your timeline actually ain't that bad, you just gotta prioritize and ask yourself if you'll benefit from getting a degree.

I finally decided to get a degree after working for 5 years and unfortunately, I have to save up for it as I go. It's also eating into the amount that I'm saving for my BTO, though I haven't had any luck with getting a ballot. Even though it limits what I can do right now, I know it's an investment that'll be worth it. Oh yea, it definitely also depends on which field you're interested in!