The losers aren't the ones stuck in the dirt, but the ones who gave up the battle along the way. Fighting with (what seems to you to be) your last ounce of courage, is the proof of how much you're able to accomplish.
Most of us with a few years and battles under our belt (forgive the pun), can say that the true perspective & lessons of a battle come only after it's behind us. When you grab hold of some success, take time to enjoy it, to show gratitude for it, to use it to fuel the next round. Eventually you'll see that the battle itself can provide the fuel and the victory. Just hang on!
I know that breast cancer patients can get visits from 5-year survivors through the American Cancer Society. One of the visitor's messages: "Breast cancer was the best thing that ever happened to me." What a ridiculous statement! Cancer as a GOOD thing? Mastectomy etc. as a BLESSING? Seems ridiculous, no? But the survivors talk about how, NOW THAT THEY'RE ON THE OTHER SIDE, they see the blessings they wouldn't have believed while in the battle. They've learned compassion. True intimacy. Appreciation for life. An deep inner happiness for the five-year cure. When all is said and done, these patients can say that they wouldn't trade their cancer battles for anything.
And these aren't frum women expressing "frum emunah and bitachon" -- these are "regular Americans" who know that battles can leave you stronger and happier than ever.
And so, my dear friend, if you're feeling like the battle is amazingly hard, I advise you to focus on the "afterwards" when you will feel strength and happiness beyond imagination. That's not just a pep talk, it is HKB'H's PROMISE to you as a Yid.
And look, He already brought you to this community, didn't He?