The most likely reason your premiums are higher than your sisters is that you are subject to something called IRMAA (income-related monthly adjustment amounts). Even though everyone must participate in Part B and Part D, the premiums are not standardized across all participants.
The Student Debt Relief Plan was announced on August 24th, 2022 with the intent of reducing the amount of federal student loan debt held by the majority of student loan borrowers.
Series I bonds have been a hot topic over the last several months, so it's not surprising they’ve entered your news feed. I bonds are a type of savings bond issued by the US government that are designed to protect the buyer from inflation.