I highly recommend getting a security bar for your door. I got one when I lived alone and it provided a huge amount of peace of mind for me to know that someone couldn't just kick my door down. Also came in handy when maintenance people tried to come in without proper notice.

Also just an FYI since people are recommending Ring doorbells, just be aware that Amazon (who owns Ring) has agreements with ICE to provide data and video footage from Ring doorbells. Their security and data usage agreements are pretty questionable.

https://www.amazon.com/Master-Lock-Security-Adjustable-White/dp/B0002YUX8I?th=1

my security bar. the best 16 bucks i've spent for peace of mind.

god that’s terrifying... all of sound like dangerous and terrifying situations. possible assulters, peeping toms, maybe robbers?? it’s freaking endless. sometimes it’s terrifying just being a woman... if i were you I’d absolutely get some protection and a dog before living on your own. it’s hard to raise a puppy but beyond worth it. sometimes just having a second set of senses is worth it, the company is very comforting too.

there’s also a stick that you can get for your door - one like this Master Lock 265D Door Security Bar, Adjustable from 27-1/2 in. to 44-1/2 in, White, Pack of 1 https://www.amazon.com/dp/B0002YUX8I/ref=cm_sw_r_cp_api_i_IXNNDbKCQQYVZ

You're wanting a security bar. This would have stopped the guy who tried to kick down your door

I bought the Master Lock Door Security Bar for my daughters' apartment and they love it. It's very strong and sturdy, more so than another door bar we tried. I wish I had know about these during their college years (in Gainesville FL no less), though fortunately they never needed it.

Master Lock 265D Door Security Bar, Pack of 1, White https://smile.amazon.com/dp/B0002YUX8I/ref=cm_sw_r_cp_api_i_.Qi-EbGMEGKMV

Something like this would be helpful too. Or this

https://www.amazon.com/DoorJammer-Lockdown-Portable-Protection-DJ4LD/dp/B07HM9HVN4

You can get a bar which fits under your lock and prevents the door being opened. You just put it in place, no DIY skills needed. Very useful when you are home alone and at night.

It’s also a good device if you are worried someone has your key. They are available on Amazon and Lowe’s also sells them.

Master Lock 265D Door Security Bar, Pack of 1, White https://www.amazon.com/dp/B0002YUX8I/ref=cm_sw_r_cp_api_i_yJ3JFbT7KYF91

Master Lock 265D Door Security Bar, Pack of 1, White https://smile.amazon.com/dp/B0002YUX8I/ref=cm_sw_r_apan_i_6SZ1V106B779T4M6MQXY?_encoding=UTF8&psc=1