Yes, my baby was diagnosed with torticollis and positional plagiocephaly (flat head) at her 3-month wellness checkup. I felt overwhelmed at first too. Mostly my husband and I felt guilty that we didn't switch up her positions and caused these conditions. Torticollis and flat head are very common. Thankfully the great news is that they are also very fixable.
I took my baby to physical therapy once a week for 10 visits and we did exercises every day at home. I didn't think of it as "torticollis exercises." This is actually how you are supposed to "play" with your baby. Before this I always thought of play as some new gadget that would attract my baby's attention, so actually I was relieved to know exactly how to spend my time with her and what to do with her.
All the play will strengthen your baby's neck, chest and back muscles so she will be able to hold her head up, roll over, sit up, crawl and so on.
If your baby doesn't like being on her tummy use a rolled up towel to place under her, or a Boppi, or you can place her across your leg.
I'm a stay-at-home mom and this was our play routine(my baby's now 6-months-old and her torticollis and flat head are gone):
After (mostly) every bottle: put her in swing or read to her in my lap to digest for 15 minutes or so.
Then: stretch play on floor.
Then: get down on floor and play -- tummy time (use toys to attract her attention/distract her from her complaints.) Roll her (both ways) on to her tummy and then back.
Then: stretch play on floor.
After a diaper change, put her on her tummy for a minute or so.
Use Baby Bijorn for walks: This way baby uses her neck chest and back muscles to hold her head up.
Also hold her (Mast-of-the-ship hold)again to strengthen neck, chest and back muscles.
Nap and Bedtime: place her on side to sleep (my baby needed to strengthen her left side, so we placed her on her left. Now I turn her head to the left and next nap turn her head to the right.)
After each physical therapy visit we had new exercises to incorporate into our daily routine. And that is the key -- to create a daily routine. Then it will all become second nature to you and your little one.
I know every situation is different yet I hope this was helpful. It will all be okay. Shoot for 5-7 times, it is possible. (At first, your baby will be stretching and on his/her tummy for a minute or so, and then increase it from there.) Also try not to make yourself crazy if you don't always make it.
My best,
B.