Just in case you didn't know!
Your baby can stay awake and feeling well for about 1-2 hours at this age. (Varies from baby to baby, from day to day, the hour of the day, and of course from week to week.)
When your baby wakes up, check the clock. Then watch carefully and note how much time has passed since waking up when your little one starts acting fussy. If you go way longer than that, you'll have an inconsolably crying baby.
Try this for a few days, because there will be variations. Usually you'll get longer stretches in the morning and when baby slept for longer.
Note the times and learn how long your baby can go staying awake.
As you're approaching the end of a stretch, put down what you have in your hands, stop what you're doing. Your baby usually needs help going to sleep. They can't really do it alone from a few weeks after birth (initially they are too weak and they can just fall asleep at a snap but not after they get a bit stronger and more aware). So, you'll need to help them to fall asleep and to learn how to fall asleep.
At first it's enough to just help them to sleep, but you'll want to help them to learn how to sleep on their own eventually.
Most babies do very well when held and rocked, but if your baby is getting really cranky you'll want to go all out. Look up the "five S method for soothing babies" - you should find www.happiestbaby.com but if you're familiar, it's the "Swaddle, Side-Stomach Position, Shush, Swing, and Suck" method.
By intervening and starting to help them going to sleep before they get fussy, you can avoid a major meltdown. You might find that your baby is actually a lot easier to handle than you thought previously!
Keep it up, momma! ♥