I could understand everything you said, so no your accent is not bad at all. Still, if you want to improve it I did notice some things that make you a little difficult to understand. Mainly noticed you make a tj sound instead of a regular t. As in tjime instead of time, tjange instead of strange, tjink instead of think, tjo instead of to, etc etc. I think you could get rid of most of your accent if you spend a little time practicing. Apart from the small accent things your English is actually very good.