Join DSA. If your chapter is run by soc dems organize the change you want to see. My comrades have pulled many people in my chapter to the left including myself. And when I say left I mean we are championing true revolutionary ideas and attempting to build an org that can rise to seize that moment when it comes. Get your commie friends and help us move this org in the right direction.
Also PSL is an antidemocratic, high control organization that purges people who speak out on the sexual assault and abuse their leaders and members commit. They are unserious about changing the material conditions in this country to further organize the working class to achieve their goals.