Hey sjt
Sending you big hugs. Just want to say, go easy on yourself. You've only just started out and the act of stopping the feeding to sleep is a huge change and a huge accomplishment.
The average awake time for this age is 2.15 to 2.5 hours. You should try also to aim for a 12 hour day, that means if LO wakes at 6.30am then bed time is6.30pm more or less.
Learning to roll is a big developmental leap. The best way to help him with this is to practice during his awake time, on the bed, sofa, play mat. He'll get the hang of it and start to put himself back in the right position in his cot,onhis own.
Also, listen to Rileys mum - this was the case with us too. PUPD can be very stimulating, start out with shh/pat, you may need to adjust it to suit your LO. my DS hates is the way its described and preferred a low hum and gentle head stroking. Focus on continuing to stop the feed to sleep, on perfecting and learning you techniques...you will get there in the end
xo