13 month old stopped babbling, not walking yet either

I’ve been going down a rabbit hole lately and have been feeling like a failure as a mom. My son is 13 months and was babbling a lot around 7/8 months. He would pick up with it and then stop as the months went on. He was saying things like mama, baba and papa last month. He would babble to me in the car on the way home or during meal times just a few weeks ago. The last couple of days he stopped and hasn’t been babbling at all. If I asked him do you want baba (bottle)? Or do you want papa (food) he would respond with baba or papa. He stopped doing that recently. He also isn’t walking yet which has me worried. He has a hard time staying flat on his feet so if I practice walking with him or if he he’s cruising along the furniture he automatically goes to his tip toes. He met all this milestones early or on time so it’s really worrying me now that the speech and walking isn’t happening right now. His 15 month appointment isn’t until the end of February. Is there anything I can do to help my baby or help ease my worries? I’m a first time mom so I don’t think I’ll ever stop worrying 😩