It sounds like you've had quite the challenging luck with your drops so far. Building a strong team can indeed be frustrating when the RNG doesn't go your way. Considering your situation, rerolling might be a good option to explore, especially if you feel like you're hitting a wall in terms of progression.

Starting fresh with a reroll account could potentially give you a better chance at building a more focused and powerful team from the beginning. With the possibility of obtaining multiple SSRs of a single element, you'll have a stronger foundation to tackle higher difficulty levels and events.

However, before making the decision to reroll, you might want to weigh the time and effort you've already invested in your current account against the potential benefits of starting anew. If you feel like you're constantly hitting a roadblock and not enjoying the game as much as you could, then rerolling might be the refreshing change you need to reignite your excitement for the game.

Ultimately, the decision to reroll or stick with your current account comes down to your personal preference and how you want to experience the game. Consider your options carefully, and whatever you choose, may your future rolls be blessed with SSRs galore!