Finally! I got to use my Uphold after making a few final simple setting. I can't believe it was on my phone for some time and never even bothered to complete the settings, thanks 
@littlenewthings for assisting me!
As soon as I got my Uphold working, the next thing I did was making some crypto purchase. You know, making online shopping via Shoppee but this one is just better, lol! Another thing I like about Uphold is its capability to connect with BigPay which makes topping up my card much easier. Plus, I got to add some BigPay points which I can redeem later, sweet!
At the moment, I just have two coins in my wallet with LTC as the new addition into my portfolio. Other than that, of course, Ethereum. I'm planning just to hold them since I just love long-term investment.
My experience so far? The transactions between card to wallet is fast. Even cryptocurrency purchases are fast too!
I got tips that Uphold is suitable to hold BAT (Basic Attention Token) too! That's awesome! But, I will have to wait until the accumulated BAT from Brave browser can be transferred to Uphold. But, I love Brave and BAT as a promising decentralized browser which I will definitely add BAT into my portfolio too.
Notwithstanding, there are still quite a lot more features in Uphold which I have yet to discover. The "earn interest" feature is quite an interest which gives 10% ROI.