The filter bubble was alarming to me when I first heard of it. The major problem with being stuck in a filter bubble is having a narrow minded view on topics. For example since Facebook has introduced personalized news feeds, we are being spoon fed content from people like us. My own practical way of circumventing this particular filter bubble Facebook has implemented is to just randomly click different friends just to integrate those “clicks” into the news feed algorithm.
I also use the incognito feature more often now so websites cannot track my cookies or search history. It also automatically logs me out of sites. I try my best to never give out my real email address to websites. I use 10minutemail to register for websites that require an email address. This will relieve your real email address from spam or phishing attempts.