Question about a printing problem with upward curves

So I’ve tried printing stuff that curves up from the bed and most of the time I get a rugged or even warped surface. Does anyone have any advice on how to deal with this on the ABS printers?

I’m super new to 3D printing myself. I’ve literally had my Prusa MK3S for about a month, however I did have this happen to me with some curves off the bed and I fixed it by adding a 45 degree chamfer as stated in this article. That or instead adding supports there helped tremendously. I’m sure someone with more experience will chime in though.

https://all3dp.com/1/3d-printing-support-structures/

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For mine I used supports, but it still came up as a mess, so I’m still scratching my head about that

Trying turning on the print cooling fan for overhangs.

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