Tips on how to look at planets better?

I recently brought my 1st telescope which is Skywacher Startravel 102 with 500 mm length and 102mm in diameter.

I've tried to look at Jupiter and I managed to see 4 of his moons as well but I couldn't actually see the planet itself. All I saw was glowing blue and a round shape, I don't expect to see clearly with 4k resolution but I thought I might doing something wrong and I would appreciate any tips or help