Did you file the self employment Schedule C? You have to file all your income both self employment and W2 on the same tax return together. If you only filed part of you income you will need to do an amended return. Unless your efile is rejected, then you can fix it and add the missing W2s and resend it.
So how far have you gone? if you filed was it Accepted?
You should not amend until the first return has fully processed and you get the first refund or your tax due payment has cleared.
How to Amend this year
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-federal-tax-return-curr...