Hi
@karthic1998,
as a newer member I'd turned to lubuntu back in 2013 (Thanks,
@BoraMurdar!) as an alternative to XP's
slow but eventual demise.
Based on Debian, lubuntu (light ubuntu) has "Ubuntu Software Center". Debian may have something similar, although I'm not certain.
From the "..Software Center" I'd then added "Synaptic Package Installer" which (I'm reading it's description from our desktop)
"..enables you to install, upgrade, and remove software packages in a user friendly way.".
You can also have a look at
Debian -- The Universal Operating System
There are communities, and links to documentation that can answer many questions for the fledgling Debian user.
I hope this helps you even a little.
PS I may just look into installing Debian (again) after a number of years, it's greater learning curve would challenge me to learn more about linux/or using it's terminal to upgrade & make changes!