that's tuff because ether answer won't make sense
Romeo’s heartache will be healed by going to the party.
Romeo’s heartache will go away if he meets another girl.
Romeo’s heartache will lessen as he gets older.
Romeo’s heartache will be healed by a potion.
I'd choose this dialogue to revise your sentence:
<span>“Did you hear?” I asked them. “My painting got selected! Exciting, right?” I smiled. “Especially given that I felt so incompetent at the beginning and that the competition was ruthless!”
</span>
It feels like the option that best uses the dialogue to improve this sentence, because the other options are either too informal or just the same sentence as the original one.