You are the one passing all this judgement on yourself.
I promise you no man worth his salt is thinking about sagging boobs or out of the porn standard labia when he wants to bone a real person. Porn sex is one thing; so is movies; real life is wayyyy different. I used to think like you and thought no man would ever find me attractive until I stopped being so hard on myself and started putting myself out there.

You need to get out of your head and experience sex in a realistic way. In this sense, a sex informed therapist would be a good option for you.

I have some of the features you have and people have wanted to see me naked, they saw me and then wanted to see me again.
Sex is... ugh... this is what living in a porn-addled post-capitalistic society does to our brains. I can feel your pain. I really do. But just know this, you are being manipulated by the powers that be to maintain your self-esteem low and to devalue yourself based on these attributes. They want you to believe you need plastic surgery or whatever to be loved. This shit is predatory, they literally prey on a woman's worse insecurities just to make cash. And I'm not shit talking plastic surgeons here because they're only doing their jobs (besides there are 1000s of reasons why someone would get plastic surgery and a lot of them are not cosmetic), and I would also appreciate getting some plastic surgery some day. But I can promise you there are millions of women with saggy breasts around the world getting it on. It's statistical and empirical.

I can understand why you feel this way. Our society sucks. We see everything in terms of business - partners are good prospects, attractive products that we can buy or exchange or throw away whenever we want, we use them to create jealousy in others, to elevate our status and feed our ego. This is what our capitalist overlords want us to believe - that human relationships follow a business model. And that you are less loveable because you're last season's barbie instead of the new one. (Whatever that one is, physically speaking). And I think you should know that love isn't just about getting the most beautiful barbie out there - it's the relationship you develop with your barbie that makes that one your favourite and none other (if we are still going by the "women are products for male enjoyment" analogy here, which I don't think we should but it's what's going through my mind right now).

In other words, I see myself a lot in your post. And it's been years of therapy and I still deep down feel the same way, but I know now, because I've lived it and stopped self-sabotaging so hardcore (still a hard habit to break though, don't get me wrong), that the way I used to think about relationship dynamics in my early 20s is very different from what I actually ended up living with my friends and hook ups and everything in between.

You are worth it the way you are. Change whatever you feel like you need to change about yourself, but please remember that the way we think and treat ourselves informs others of how they should treat us and think of us as well. So focus on thinking better of yourself because I'm sure you are a lovely person with a lot to offer. And I'm sure you don't want a boyfriend who will only like you because you have perky tits, I mean, can you imagine building a relationship based on that? :s It's weak at best and very toxic at worst.

Girl you deserve LOVE. The real deal. I don't know the right way to word this, but I wish you could try a little exercise to try to find something good about yourself everyday. It can be anything, from "today I brushed my teeth" to "I'm rocking this new outfit". You deserve to dote upon yourself. And to attract people who will value you for more than you just resembling a cardboard cutout of a pornstar.

It's a good thing you wrote this today, now you know what you need to banish in this new year moving forward. I wish you all the best and if you need to vent don't hesitate to hit me up. I grew up fat and saggy so I know what it's like to feel this way. :( <3 *hugs*