$0 Income in 2023, and excess Roth IRA Contributions; Questions about yearly Roth IRA Contribution periods, form 5329, needs for amending, and how much to withdraw from Roth IRA

I wanted to ask for guidance on my situation before I move forward with withdrawing, mailing, or amending, in case I might not need to. While researching how to resolve my excess Roth IRA Contributions, I've come across advice and information that have only brought up more questions; Please help!

I had income up until June 2022, and I contributed $30 to my Roth IRA on Fidelity Investments in early 2023 before the tax-filing deadline of April 18, 2023. After the tax-filing deadline, with $0 income throughout all of 2023 and no unemployment income, I contributed another $30 to my Roth IRA, not knowing that it would count as excess contributions because the $30 exceeded my income. After this, I haven't contributed to my Roth IRA because I have had $0 income since then.

When I filed my 2023 tax return on TT, I put $60 as my excess contributions thinking that I had to include all of my contributions in total of the year 2023, so I paid a 6% penalty of $4 in my 2023 tax return for keeping the excess in my Fidelity Investments account for a year. I haven't withdrawn the excess amount from my core cash on Fidelity Investments yet, either, because I don't know if I'm supposed to withdraw $60 + all earnings ($36.31), or if I'm supposed to withdraw $30 + all earnings to date ($16.56), or I'm supposed to withdraw a different amount. Also, I'm younger than 59 1/2, so I think there'll be a penalty when I withdraw, and I want to make sure I withdraw the correct amount from my core cash. I calculated my earnings by using the IRS' formula I found on Investopedia. I'm unsure if I can drop links here, so I won't.

1) $30 of my 2023 contributions were made before the 2022 tax filing deadline of April 18, 2023. Am I correct to think that these contributions count toward my 2022 Roth IRA Contributions? 2022 is the year I had income which was definitely greater than $30.

2) Should have put $30 instead of $60 when reporting my excess Roth IRA contributions in my 2023 tax return? If so, does that mean I need to submit Form 5329 and 1040X and make the change to $30 instead of the $60? I believe I read that I can do this electronically on TT since I've been filing with TT for several years.

3) I got married in October 2024, and my husband and I plan to do our taxes this year Married Filing Jointly on TT. Will all of my forms have to be submitted ASAP before we file together? Or should I include these forms when we do file?

4) I realize I will have to pay the 6% penalty again because I haven't withdrawn the excess amount from my Fidelity Investments account for another year, but I'm not sure if my excess amount is $30 or $60, so I don't know how much to withdraw!

5) If the $60 I reported on my 2023 Tax Return is correct, and I don't need to submit a 1040X to amend, then should I immediately mail a printed 2023 version or 2024 version of Form 5329 to the IRS with a check to pay for the penalty of having it in my account for another year? If so, I'm assuming it will be $4 again since I haven't contributed to my Roth IRA since then.

6) How much do I withdraw from my core cash on Fidelity at this point? Do I include the earnings/losses?