Why’s my plant look like this

Interveinal chlorosis typically is caused by cal-mag deficiency.

Also I don't recommend using the Ph meter pictured above. Invest in a good Ph meter. it will pay for itself.

Solution - Ensure Ph is 6.5 - 7. If you are growing in soil.
Look for some gypsum if growing organic, or put some Calmag if you use the bottled nutes.

Leaves likely will recover slightly. Notice how the bottom leaves are going first? Tell tale sign of a deficiency.

Good luck!

Thank you!!!

For future reference, I'd recommend doing some studying in regards to signs of plant stress and nutrient issues. For example, some elements are mobile in the plant, some are not. This affects where the deficiency starts on the plant and how it tends to progress. Just know which element is mobile and which is not can help you narrow things down when you have a problem. Also, as stated above, get the nicest meter you can afford. The more accurate your information is the less likely you are to have problems and the sooner you will catch them. Finally, do some general reading on plant biology and horticulture when you have time. It will help you to raise healthier plants and help you trouble shoot when things go wrong. Best of luck.

I have a ph meter for the nutrients but that one I have for the soil doesn’t seem to work, I had it somewhat holding up the plant

if i had to guess from your picture, it would be a pH issue. It looks like a few problems