Engine has low power when transmission is in drive and there is fluid leaking from under the car

At 1 point yes the rpm was revving as high as 3to4 but that hasn't happened in a while unlike other CVT transmission I've had this 1 has a dipstick under the hood for me to check the transmission fluid and it is full and it doesn't look dirty, but considering I don't know if it's ever been done. I have thought of draining and replacing the fluid but was told it may do more harm than good. So, I havent yet and it doesn't smell burnt ether but when I'm pressing the gas it feels as though its struggling to get power, but no RPM raises higher then 2 to 3 mostly as for the leaks underneath I noticed right after replacing the pump 3 times due to the 1st two times being done by an idiot leaving it half taken off the 2nd time and the eye bolt and the high pressure hose there's leaking coming from somewhere in this area as well as on the driver's side at the other end connection area or the transmission they are so close I can't tell to be honest, but hers all I have changed the rack but it was used the high pressure hose eye bolts, reservoir, pump, drive belt, battery, control arms, both tie rods on both sides, and both axles. I think that's all. I did notice that there are some tiny rubber hoses that look to ne deteriorating underneath of the engine cover but I used electric tape to seal them. I ran a code scan, and nothing came up, that's why I was wondering if I should have a diagnostic ran on it to see if anything comes up. I also noticed the other am that after starting it there was a light white smoke coming from the tail pipe so I googled it and it said that if any of the plugs had gotten moisture or coolant around them these symptoms could be related, but as you see I have been spending a lot of time and money and work done myself and getting nowhere really and the plugs are not cheap nor easy to do the back 3 and cost is about the same as a diagnostic test. So, I don't know which to do 1st or even at all I have not owned the truck a year yet and mind you wasn't driving it for about 4 to 6 months of this time due to all the issues so with all this info. What's your thoughts now as to what to do? Once the sun comes up I will snap a few pics or a video of what I'm trying to explain. Thanks for responding.

Also, when I start it it's kind of loud sounding to me and it seems like its idling rather high.

Okay, I will but no the RPMs stay steady between 2 to 3 and it accelerates; still, it's just what I feel when I'm pressing the gas pedal it feels like its struggling and leaks. Haha LOL, I swear the leaks this dang thing got going on now I never see anything coming out when its running or parked but say I clean my driveway today park my car the next morning I will have spots of fluids under it.I rarely have to add any oil transmission or power steering fluids to it. I will go pop my hood and then have my son record the sound when I start it and again showing the dash info and the other stuff you mentioned.

Oh, and no codes at all come up and no check engine lights ever have come on.

Okay, so I'm going to try to upload again. My phones acting up and wouldn't let me yesterday.

Okay, so here are the little hoses I mentioned earlier that I thought someone had cut at first until I looked closer and saw they are deteriorating and there's a unconnected hose. I don't know where it goes other than somewhere under the breather box. I'm cleaning the MAF Sensor and throttle body now then my plugs. What rare your thoughts?

Wow I swear I had responded yesterday sending 3 videos and now I don't see the feed at all from that so il try again so its not the passenger side that hose comes off the tranny and I to idk what but it runs under the air filter box now on to my most latest progress I cleaned the maf sensor and the throttle body and this is what I got out of it im including a video there looks to be a fiter or something like it inside the flap thats stained and a lil bent still but much cleaner I also put a new air filter in im going to change my plugs and the throttle body air intake housing hose thing cause its been mended enuf prior to me buying the truck when driving its got more power now but while coasting it will jerk slightly as if trying to stall out I also got a piece of cardboard to place under it tonite to see leak spots

Okay, so here are a few different pics of the hose and what it is coming off of. Also, I got a piece of cardboard big enough to fit under my truck side to side so I can show you all my leaks. I will send it in the morning. Sorry, this is at night, but I got off work too late.