Leah Messer is turning things around for herself and her three daughters, twins Ali and Aleeah, 7, and daughter Adalynn, 3.

After going to rehab in 2015 for anxiety and depression, the longtime Teen Mom 2 star has announced plans to go back to school and recently shared exciting news about a new business venture.

"Y'all I am SO excited to be a part of SeneGence and sell LipSense," she wrote on Instagram on Wednesday. "I haven't felt this excited and motivated to succeed at something for a little bit now and I love all of the support I've gotten from you all. It means so much to me. But there are some things that really hurt... if you sell LipSense too that's so great! But my page is not a place for you to tag your business. If you sell Younique, or anything else and tag your business... that hurts ME! My page isn't a free advertising platform for you all and I encourage you to think outside the box for other ways to EARN customers for your business. Thank you so much for following me on this journey and supporting my family."

Messer spent 30 days in rehab in 2015 after being accused of struggling with an addiction to drugs, which she denied. 

To see more of Leah Messer and her family, tune into the premiere of the second half of the seventh season of Teen Mom 2 on Monday, Jan. 2, at 9 p.m. on MTV.

Tags: leah messer Teen Mom 2 MTV Reality TV