As a plus-size model, Tess Holliday is used to standing up for what she wants, but admits that she’s not always as confident as she appears.

In a new post on Instagram, the 31-year-old shared a breastfeeding photo that was taken over six months ago, but still stirs up a lot of feelings.

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“It's not #tbt technically, but I found this photo on my phone now from September of last year & it gave me so many feels,” she captioned the image. “This photo was taken at my dear friends @honeywoodvintage @charlieoverbey home during a dark time in my life.”

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It's not #tbt technically, but I found this photo on my phone now from September of last year & it gave me so many feels. This photo was taken at my dear friends @honeywoodvintage @charlieoverbey home during a dark time in my life. I was an emotional mess + struggling to find my way as a new mom again. When I looked at this photo a wave of sadness poured over me, but now I only see my tiny bubs nursing & Sweetie looking on like a nervous new mom 😂 Life is messy, love is complicated, & it can all feel so overwhelming but we grow & learn. I'm so grateful for my life & appreciate it all, even if I can't always see the light at the end… it's there. Promise 🤞🏻🌈✨💕 #momofboys #motherhoodrising #normalizebreastfeeding

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She continued, “I was an emotional mess + struggling to find my way as a new mom again. When I looked at this photo a wave of sadness poured over me, but now I only see my tiny bubs nursing & Sweetie looking on like a nervous new mom.”

The beauty, who gave birth to a second son in June, added, “Life is messy, love is complicated, & it can all feel so overwhelming but we grow & learn. I'm so grateful for my life & appreciate it all, even if I can't always see the light at the end… it's there. Promise.”

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The candid caption comes just one month after Tess shared a makeup free snap in which tears streamed down her face. “This is the reality of being a mom,” she said. “I've been up since 3 am, & every time I get Bowie to sleep & try to lay him down, he wakes up.”

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This is the reality of being a mom. I've been up since 3 am, & every time I get Bowie to sleep & try to lay him down, he wakes up. He is teething & has no clue I have to work today, & most days I can work 15 hour days, take care of both boys & put some lipstick on & deal with it. Most days I drink my coffee & smile at every little thing he does thinking it's the best thing in the world, but not today. I've been crying for nearly two hours, & I'm crying as I write this. I've reached my limit, exceeded it to be honest. My confidence has taken a blow with this birth & it wasn't until this morning I realized why. The pressure of "looking good" for a living is too much today. When your face is breaking out from the hormones of breastfeeding + total exhaustion from lack of sleep, bags under your eyes, patchy red skin & to top it off no energy to work out or leave my bed.. how do you do it? How do you feel confident in your skin & feel like you aren't letting the client down by showing up exhausted & disheveled? Yes, I chose a career based on my looks & I'm the first one to say that beauty isn't what should drive you, it's certainly not what motivates me. As a working mom in an industry that's as critical as mine, where is the line? The balance? The compassion? Is any career understanding when you show up at negative 10% because your kids wouldn't let you sleep & you want to hide under your covers & cry? Not many. I hope one day that changes & society views mothers as the flawed human beings we are that are just trying to keep our shit together like everyone else. #effyourbeautystandards #workingmoms #disruptperfectmomsyndrome

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She explained, “My confidence has taken a blow with this birth & it wasn't until this morning I realized why. The pressure of 'looking good' for a living is too much today. Is any career understanding when you show up at negative 10%…? I hope one day that changes & society views mothers as the flawed human beings we are that are just trying to keep our shit together like everyone else.”

Scroll through the gallery below to see which other celebrity moms have hopped on the public breastfeeding bandwagon!