Jenelle Evans of Teen Mom 2 fame knows she made some mistakes during her early years on MTV, but the 23-year-old insists that things have changed.

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 "I understand you watch old episodes and get mad by what I did," Evans told fans on Twitter Monday.

She also suggested, however, that those things that she did are no longer a part of her life and she is more interested in her family than stardom.

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"All my exs current gfs are ALL trying to stay relevant," Evans continued, "while I'm here living life like heeeeey.."

Evans has a long history of addiction and criminal activity, but the MTV mother seems to have put all of this in the past. She's been spending a lot of time with her kids lately, having given birth to her youngest son Kaiser just two weeks ago. Her Twitter account is filled with posts about his daily activity, including the likelihood of an "innie belly button" and how her and the baby's father, boyfriend Nathan Griffith, talk about their son and who he takes after.

The parents have yet to release a picture of baby Kaiser beyond the one taken of his feet the day he was born, but professional photos were taken last Friday and Evans has told fans that they will be revealed sometime this week.

While Teen Mom 2 returns to television this week, Evans assures fans that she has yet to see any of the new episodes, having been preoccupied with Kaiser and going back to school.

Kaiser is Evans' first son with Griffith. Each has a child from a previous relationship.

Teen Mom 2 begins again on MTV Wednesday, July 16 at 10 p.m. ET/PT.

Tags: Teen Mom 2 MTV Reality TV