Trying to decide what to upgrade

[Corderos SMith]

Needing a little advise. I have 3bd 2.5 bath home  in Dallas, Tx under contract right now.  I plan to stay at the property for about 5/6 years then rent or flip depending on the market. I'm wondering if anyone can tell me which upgrades would bring the most value to the home. The home was built in 2000 so its not super outdated but can definitely use a face lift in areas like the kitchen, bathroom, and fresh paint.

Can any one tell me what upgrades have you seen bring the most value to a property, and what kind of time frame should I use? would it be better to wait until closer to the time I'm ready to rent/ or sell to make the upgrades. I am also planning to rent out a room while I'm living here.  Thanks in advance !