If you are a beginner at sewing and have around 2 months of sewing non-stretch fabrics but are afraid of handling knits, here is what you can do like me.
BlankSlatePatterns provides a beginner pattern here: https://blankslatepatterns.com/collections/women/products/blanc-t-shirt
You can download for free if you join their Facebook group at https://www.facebook.com/groups/BlankSlatePatterns
Melissa gives very easy to follow instructions and the group is very helpful where you can ask your questions.
Below are my T-shirts.
Learn more about twin needles here: https://oliverands.com/community/blog/2016/02/tips-and-tricks-for-twin-needle-hemming.html
Learn more about thread tension here: http://www.threadsmagazine.com/item/4302/understanding-thread-tension/page/all