I am working from home since past 1.3 year, and also I am working since 1.3 years as well. So here is what I learned working from home:-
Never ever try to overlap friendship and professional work. Your colleagues can be your friends but try to keep that outside of work.
Try to be much more secretive and personal with respect to your career decisions. Your resignation/ preparation for something else, etc, all these things should be personal and not to be told. You can probably tell your closest office friends before 2 weeks of your last day but in my opinion it's better to tell them the last day.
Do not procrastinate, learn something new as no one is your personal secretary, your growth is in your hand. If you waste your time it's your fault.
Everyone's growth is going to be different, please don't compare yourself with others. Everyone has different ability to learn and perform.
Never take someone else's work under any circumstances. It would be hard to tell no once you start doing this.
Be polite and friendly in nature. If you are working from home it's good to turn on cameras in a while, it feels more connected.
The biggest lesson is to not cheat with the work, it's bread and butter for you, whatever you do, try to give your 100% else you will feel unsatisfied. Read Also : How can you motivate me in one minute?