How do I deal with imposter syndrome as a new Muslim?

Yes, you can, starting with knowing that you're not a fake. If you said the shahada sincerely, you are fully Muslim, no matter how little you know yet. Feeling like an imposter is common among converts, and it usually comes from expecting yourself to be an expert overnight. Allah asks for sincerity, not perfection.

What imposter syndrome looks like

Many new Muslims describe the same thoughts:

"I'm just pretending." You pray but don't feel "Muslim enough."
"Someone will find out." You worry people at the mosque will notice you don't know the words.
"I don't deserve to call myself Muslim" because of your past, your clothes or your weak habits.

These feelings are about confidence, not about faith. They don't change your status with Allah.

Your intention is what counts

The Prophet ﷺ said: "The reward of deeds depends upon the intentions and every person will get the reward according to what he has intended" (Sahih al-Bukhari 1).

You became Muslim because you believe. That intention is real, even on days when your feelings are flat. Nobody needs a certificate or a teacher's approval to be accepted. See Do I need a certificate to prove I'm Muslim?

Allah only asks what you can carry

لَا يُكَلِّفُ ٱللَّهُ نَفْسًا إِلَّا وُسْعَهَا "Allah does not charge a soul except [with that within] its capacity." Quran 2:286

You're not expected to know what a scholar knows. You're expected to do what you can today and keep learning. The Prophet ﷺ also warned against overloading yourself: "Religion is very easy and whoever overburdens himself in his religion will not be able to continue in that way... try to be near to perfection" (Sahih al-Bukhari 39).

Ways to quiet the "fake" feeling

Learn one thing at a time: one surah, one dua, one ruling. Confidence grows from small wins.
Say "I'm new" out loud. Most Muslims respond with warmth, not judgment.
Find other converts. Hearing "I felt that too" takes away much of the shame. A campus MSA or convert circle helps. See Can I join the Muslim Student Association as a new Muslim?
Don't measure faith by feelings. Some days prayer feels empty, and that's normal. See What if I don't feel anything when I pray?

When it's more than doubt

If the feeling comes with constant anxiety, low mood or trouble sleeping, consider talking to a doctor or licensed therapist. Many therapists understand both faith and identity changes. Getting help doesn't make you less Muslim.

Key points

A sincere shahada makes you fully Muslim.
Allah judges intentions, not how much you know.
No one is expected to learn everything at once.
Other converts can help you feel less alone.

Tip: When the "fake" thought comes, answer it with one sentence: "I believe in Allah and His Messenger ﷺ, and I'm still learning." That's the truth, and it's enough.