Only since I just dealt with this (I too rarely ever get TE), I can share some quick advice that should keep you playing a lot of tennis, with minimal time off. I spoke with multiple Orthos, and the advice that worked, didn't require any needles in my arm, and got me fully recovered is below:
First one is if you are doing the flexbar exercises and they hurt and don't seem to help - stop playing for a while. You probably aren't there, but it's just good to know. It really sucks when you can't hit your FH properly due to pain. That is typically accompanied by months off the court to get better. I kept playing, ended up with the partial tear and I was done for months. That said, the Flexbar works, and may very well get you back at it with no more pain. Even if it does the job, consider the points after this one.
Another thing is the tennis elbow arm bands actually are good as a preventatives. They don't fix TE, but they will support your arm and lessen the risk of it coming back. Well worth the $20 or so to have a few in the bag. I'd start wearing them right away, but you REALLY want to wear them once you are recovered. I barely notice mine is on. I am a huge fan of this one. $12 for 2 -
https://www.amazon.com/dp/B07253Z16J?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1
Side tip that also made a big difference and you should consider - The carpal tunnel wrist brace. Just wear it when you sleep. It is very easy to aggravate the TE when you are sleeping and in wierd positions for your arm. The wrap was given to me by an ortho and it made a huge difference in my recovery. Definitely grab one like this -
https://www.amazon.com/Carpal-Tunnel-Support-Splint-Stabilizer/dp/B08S2TDDNQ?pd_rd_w=mY3Lu&content-id=amzn1.sym.ea1d9533-fbb7-4608-bb6f-bfdceb6f6336&pf_rd_p=ea1d9533-fbb7-4608-bb6f-bfdceb6f6336&pf_rd_r=078TTPJ02EK8SSNXXRFY&pd_rd_wg=sgtaH&pd_rd_r=9532a8ae-449e-4014-9fef-7cc4cd4040f5&ref_=sspa_dk_detail_sbt_img_2&sp_csd=d2lkZ2V0TmFtZT1zcF9kZXRhaWxfdGhlbWF0aWM&th=1 For $20 it can keep you on the court. I rarely see that discussed here, but sleeping many times is where TE actually gets worse.
Scenario if things actually do get worse for some odd reason (hopefully that won't happen) Rest the arm. Just do it. It sucks but you can recover completely from TE if you rest. So just monitor that.
Finally, don't forget Lorenzo. Send him a nice text now and then. He has your back in this situation, I can attest to that.