I spilled a lot of laundry detergent on my hand and rinsed it off. should i be concerned about chemical burns or anything like that?

No worries: If the exposure was limited to your hands and not to mucous membranes such as eyes or accidental ingestion, then there should be no issues with standard laundry detergent. If you develop any allergy symptoms such as swelling, redness, itching, then take benadry or zyrtec (cetirizine) and followup with your doctor.

Wash very well: Wash very well with tepid or cool water and if you don't feel anything, you are fine. If you feel burning, wash in cool water for 15- 30 minutes. I still burning to ER or UC. But hopefully that won't happen.

You should be ok: Laundry detergent is just soap, so you should not have to worry about getting a chemical burn. Of course it is important to wash off, but you should be fine as long as you do so. If you spilled bleach or some other harsh chemical then you might need to be more concerned, but even then, as long as you wash well you will probably be fine. Contact poison control if concerned 1-800-222-1222.