Sorry in advance if you mentioned a spouse (or a lack there of) elsewhere and I missed it, but I'm sure you know that you can fund a working OR non-working spouse's Roth to the full $5K if you have at least $10K total earned income between the two of you. ($10K because you already have your own $5K Roth.) I mention this because I had to research it back when my spouse left the workplace before I did. I wasn't sure of the rule at the time because she had always funded a Roth on her own.
The Roth is the best thing the gummint ever did to help people become FI. It would be a shame to miss even a $1 of this vehicle when saving for FIRE. If your Roth provider requires any fees for your Roth, you can pay them separately so that the full $5K goes into your Roth.
(Someone please correct me if I'm wrong on any of this - Since FIRE in '05, I haven't funded a Roth out of earned income for 3 years - unless you count funding my Kids' Roths, that is.)
Ko'olau's Law -
Anything which can be used can be misused. Anything which can be misused will be.