Sorry, im new hereHere are some options:
Please use a search engine beforehand next time. Not making even the most minimum of efforts to ascertain whether your question has been already answered is disrespectful to people, who take time out of their busy lives to help others with problems that other users have with their distros.
I sadly cant upgrade the ram, my laptop's ram is soldered, but thx for the suggestionYou could go here: https://distrowatch.com/ take a look at some, read the reviews and try from a flash drive those that caught your attention. Also, if you can, upgrade your RAM, add 4GB more, your device (Intel Celeron n4000) max supported RAM is 8GB. And if you haven't got a SSD, get one, and with these 2 hardware upgrades I think you'll have more room to try and test Linux distros until you find the one that suits you best.
don't worry, I run several distributions on my now 13 yr old laptop with only 4 gb ram, unless you were hoping to use ram heavy applications [vidio rendering, gaming etc] then you will not need any extraI sadly cant upgrade the ram, my laptop's ram is soldered, but thx for the suggestion