You will feel much worse before you feel better so bear that in mind. Aching, sore, tired..
6 months minimum to feel like you are getting somewhere.
And, do not use weight or body measurements to track progress. Muscle is denser than fat so you will gain weight if you are developing muscle. And, you will look bulkier or heavier because there is still a layer of fat on top. Use reps to track your progress e.g. I could do a half push up on my knees at day 1 and at month 6 I could do 1 full on my knees and 3 more half push ups.
For me I was a size 14 when I started. I had never exercised before. It took 6 months to feel any progress at all. And I hated how fat my arms looked with the muscles getting bigger, it was worse looks wise and only the health side of things kept me going.
After 12 months I finally started shifting some of the excess fat due to building enough muscle to raise my resting calorie burn. After 3 years I got down to a size 10 for a few months. Difficult to maintain since I have to be so careful with food to avoid eating more than I'm burning. So back up to a 12 gradually over 6 months or so. But working my way back as I like being a 10 much more than a 12 personally.
The long term health benefits are massive so aim for sustainability. Just keep doing it and you will get the results. Exercise is one of the very few things with guaranteed results. You got this!