Before I get into this I must warn you that this is a half-assed and my 1st indoor grow attempt, so experienced grows please forgive me.
This is Connie and she's 1 month old (random seed)

Like I said this is my 1st indoor grow attempt so I sadly only know the basics (this is also a very cheap grow attempt). She's in 1/3 of a 2 liter pop bottle with Miracle-Gro Moisture Control Potting Mix. My sad excuse for a "grow light" is an upside down bed side lamp with tinfoil at the bottom to reflect more light, the bulb is a 20 watt Helical bulb (Yes I know this is very low watts for growing), I have the light on for the full 24 hours of the day. At 1st I used tap water that has sat for at least 24 hours but last week I noticed spots on a few of the very 1st leaves.

After seeing this spots I assumed that the pH level of the tap water even after sitting for the 24 hours was still too high so I switched to using Aquafina bottled water (It was my best guess for a quick cheap fix)
At about 3 1/2 weeks I noticed the points of the leaves seem really jagged. I guessed that this was a product of over watering so I let it sit for two days and it didn't seem to get any better/worse. To be 100% honest I don't know if this is bad or normal.

And now at 4 weeks it seems to me that the leaves turned glossy. Once again I have no clue if this is normal or not (I'd rather be safe then have my girl suffer)

Something I know that is wrong is the temp. I understand it's way too low I didn't expect her to make it past the 2nd week due to the fact that I've never had one last longer (outdoors).
For the past 3 days I've watered her once a night @ 11 pm with a spray bottle, I spray the leaves enough to make it look like a 10 sec drizzle and the soil enough to darken it about 1 1/2" deep.
If I were to go and buy a decent grow lamp/bulb would it be too much stress on her or is it a worthy gamble.
Even though that now my heart and soul is into this plant hoping the best for it, I don't know enough to be confident to just let it go as is. Any help is much appreciated.
This is Connie and she's 1 month old (random seed)

Like I said this is my 1st indoor grow attempt so I sadly only know the basics (this is also a very cheap grow attempt). She's in 1/3 of a 2 liter pop bottle with Miracle-Gro Moisture Control Potting Mix. My sad excuse for a "grow light" is an upside down bed side lamp with tinfoil at the bottom to reflect more light, the bulb is a 20 watt Helical bulb (Yes I know this is very low watts for growing), I have the light on for the full 24 hours of the day. At 1st I used tap water that has sat for at least 24 hours but last week I noticed spots on a few of the very 1st leaves.

After seeing this spots I assumed that the pH level of the tap water even after sitting for the 24 hours was still too high so I switched to using Aquafina bottled water (It was my best guess for a quick cheap fix)
At about 3 1/2 weeks I noticed the points of the leaves seem really jagged. I guessed that this was a product of over watering so I let it sit for two days and it didn't seem to get any better/worse. To be 100% honest I don't know if this is bad or normal.

And now at 4 weeks it seems to me that the leaves turned glossy. Once again I have no clue if this is normal or not (I'd rather be safe then have my girl suffer)

Something I know that is wrong is the temp. I understand it's way too low I didn't expect her to make it past the 2nd week due to the fact that I've never had one last longer (outdoors).
For the past 3 days I've watered her once a night @ 11 pm with a spray bottle, I spray the leaves enough to make it look like a 10 sec drizzle and the soil enough to darken it about 1 1/2" deep.
If I were to go and buy a decent grow lamp/bulb would it be too much stress on her or is it a worthy gamble.
Even though that now my heart and soul is into this plant hoping the best for it, I don't know enough to be confident to just let it go as is. Any help is much appreciated.