If I only have a 1099 at the end of the year.Can I still claim travel expenses and get the earned income credit and child tax credit or does it disqualify me?

Did you have self-employment income?   Do you have a 1099NEC?   What travel expenses are you asking about?   If you have self-employment income then you need to be using online Premier or any version of the CD/download software in order to prepare a Schedule C for business expenses such as milage driven while working.   Commuting to and from work is never deductible.   You may be eligible for the child tax credit and/or earned income credit, depending on the income you enter.

Yes---you have self-employment income.  Yes, you might be able to get child tax credit and/or earned income credit.  The amounts will depend on how much you earned.  

If you have self-employment income for which you will pay self-employment tax for Social Security and Medicare,  you will need to use online Premium software or any version of the CD/download so that you can prepare a Schedule C for your business expenses.

https://ttlc.intuit.com/questions/2926899-how-does-my-side-job-affect-my-taxes

https://ttlc.intuit.com/turbotax-support/en-us/help-article/form-1099-nec/1099-nec/L5qTsBiSe_US_en_US

https://ttlc.intuit.com/community/self-employed/help/how-do-i-report-income-from-self-employment/00/26653

https://ttlc.intuit.com/community/self-employed/help/what-is-the-self-employment-tax/00/25922

https://ttlc.intuit.com/questions/2902389-why-am-i-paying-self-employment-tax

https://ttlc.intuit.com/questions/1901340-where-do-i-enter-schedule-c

https://ttlc.intuit.com/questions/3398950-what-self-employed-expenses-can-i-deduct

https://blog.turbotax.intuit.com/self-employed/self-employed-tax-deductions-

calculator-2021-2022-50907/

https://ttlc.intuit.com/questions/1901110-do-i-need-to-make-estimated-tax-payments-to-the-irs

https://turbotax.intuit.com/tax-tools/calculators/self-employed/

DOORDASH, INSTACART, GRUBHUB, ETC.

https://turbotax.intuit.com/tax-tips/self-employment-taxes/filing-taxes-for-on-demand-food-delivery-drivers/L7dIkSK6I