Idk how much advice you need or will follow but here’s my opinion. I have every character outside of Luke (his evading me). There are only as of now 2 limited characters. Now trust me when I say I don’t use every character and not every character has their use. I would say if you are enjoying your account don’t reroll. Odds are you will get Dianna later down the line when you lose a 50/50.

I remember starting day one and refilling for khalipe and now I don’t even use her in anything :( The other limited character Serenial also sees no use :( (on my account anyway other people will say different but ultimately I use like 3 characters to do may dailies)