Don't compare yourself to what others have...because chances are you won't have their debt, and or the loss of said items..
.....plus people can look like they have it all or "all together" and they could be fronting and/or suffering inside.
It sounds cliche, but look at your blessings....I mean all of them...you have a great new baby (Congrats!!) that is healthy thank God! But also look at the fact you are not homeless, you are "rich" enough to have a computer...you yourself are healthy..you can see and walk etc. Easier said than done but try to focus on the positive things in your life and not the negative ones.