As long as hbd is below a dollar you can convert the hbd to hive in the wallet using the convert feature.
Or, you can use the market feature to sell it straight across, or set a limit order and wait for the market to come to you.
Or, you could put your hbd into savings, again in the wallets, and cash in on that sweet 20% interest.

By creating original content regularly you will grow your account steadily.
You just have to show up enough that folks start to follow you.
Unless you create a presence, nobody knows you are here.

If you want to increase rewards, making 'good' comments on the posts of others is how to get known.
People see your comments and want to look at your content.
Maybe they drop some votes.