Jenelle Evans is proud of the life she's created for herself over the last year on MTV's Teen Mom 2. After struggling with drugs and abuse, she's pulled herself together and is moving forward with school and the raising of her young children.

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Evans has been particularly enthusiastic when it comes to her education, keeping friends and fans on Twitter up-to-date with her schedule.

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The mother of two knows she's made mistakes in the past, but has a few choice words for those who continue to overshadow her current triumphs by emphasizing her past failures. On Twitter Thursday, Evans reacted to the "negativity" of critics online.

Evans has a history of losing her cool in stressful situations, but over the last few weeks had been managing to keep her hostility in check.

Currently the reality star is living with boyfriend Nathan Griffith, who is also the father of her three-month-old son Kaiser. Evans is also looking to get custody of her elder son Jace back from her mother, which could be the cause of her recent calm. Evans' mother Barbara has been the boy's legal guardian for the last five years, but now that she's back in school and raising her second child, Evans has been wanting to get Jace back.

Tags: Teen Mom 2 MTV Reality TV