For what it's worth, better wheels are really noticeable, that would be my start.
And a front brake/hoods can help. But if the frame is too long and you can't get comfy at all then maybe get another one first?
I had a too long/low frame and I'm a lot comfier on a fitting one.
@JWestland started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
For what it's worth, better wheels are really noticeable, that would be my start.
And a front brake/hoods can help. But if the frame is too long and you can't get comfy at all then maybe get another one first?
I had a too long/low frame and I'm a lot comfier on a fitting one.