Actually (unless you have some sort of ailment) you would be better off than an adult
If you're a teen (which you should be if you use this site) then you should be very healthy and definitely be able to survive a recluse bite
Brown recluse venom is a hemotoxin, meaning it affects blood. The absolute worst that could happen is nausea, muscle pain, and a re-opening wound around the bite mark.
If you have been bitten in the arm or smh lie in a semi-reclined position with the bite wound below the level of the heart. This prevents the venom from spreading to other parts of the body until medical help arrives. Tie a bandage 2 to 4 inches above the bite wound to slow the spread of venom in the body.
this if for snake bites, but probably the same thing applies
best case scenario it will be a bit sore for like 2 days
some spiders higher than others though
also on your foot, you'll likely be alright
anyway can you describe the spider