Hi,
I always use the Hive Wallet market for trading between HIVE and HBD (as you are aware I'm a tad obsessed with it !). At this point in time the price of HIVE is so low, that for me its better to be changing HBD for HIVE ! However, if it were me, I know exactly what I'd do - because I'd want to get a good price when changing HIVE into HBD. As such, I'd go to the Hive Wallet Market, and I'd look at the current price (which is 0.316099 at the time of this comment), and then I'd place some trades that are above that price, so that I'd get more HBD. I'd check what price HIVE has been over the last 1-2 weeks, and then select something that looks realistically achievable. Looking at the price now, since the start of May, the price has ranged from $0.2943 to $0.3859 - although that high, was a very short lived spike. It certainly did hit $0.34 a few times (and above), so I'd probably pick something just above $0.34 (or maybe $0.35 or $0.36 if feeling more optimistic), and set my trades there (and then you can sit back and wait - if it hits the price, the trades will go through and you'll have gotten more HBD compared to the current low price). If they dont go through quickly enough, you can always cancel the trades, and set new ones with a slightly lower trade price.
I'd then simply do the same each month, when looking to change more HIVE for HBD.

I wish you best of luck for the 7th of June - not that far away now (but I know you'll smash it !).
Cheers @hoosie